Agilent Technologies 33120A Welding System User Manual

Service Guide

Publication Number 33120-90017 (order as 33120-90104 manual set)

Edition 6, March 2002

© Copyright Agilent Technologies, Inc. 1994-2002

For Safety information, Warranties, and Regulatory information, see th e last page in this manual.

Agilent 33120A

15 MHz Function /

Arbitrary Waveform Generator

Cover Page for Web Version ONLY (Service Guide)

Warning

Note: Unless otherwise indicated, this manual applies to all Serial Numbers.

The Agilent Technologies 33120A is a high-performance 15 MHz synthesized function generator with built-in arbitrary waveform capability. Its combination of bench-top and system features makes this function generator a versatile solution for your testing requirements now and in the future.

Convenient bench-top features

10 standard waveforms

Built-in 12-bit 40 MSa/s arbitrary waveform capability

Easy-to-use knob input

Highly visible vacuum-fluorescent display

Instrument state storage

Portable, ruggedized case with non-skid feet

Flexible system features

Four downloadable 16,000-point arbitrary waveform memories

GPIB (IEEE-488) interface and RS-232 interface are standard

SCPI (Standard Commands for Programmable Instruments) compatibility

Agilent IntuiLink Arb Waveform Generation Software for

Microsoft

®

Windows

®

The procedures in this manual are intended for use by qualified, service-trained personnel only.

Agilent 33120A

15 MHz Function /

Arbitrary Waveform Generator

Page 1 (Service Guide)

The Front Panel at a Glance

2

1 Function / Modulation keys

3 Waveform modify keys

4 Single / Internal Trigger key

(Burst and Sweep only)

5 Recall / Store instrument state key

6 Enter Number key

7 Shift / Local key

8 Enter Number “units” keys

Front-Panel Number Entry

You can enter numbers from the front-panel using one of three methods.

Use the knob and the arrow keys to modify the displayed number.

Use the arrow keys to edit individual digits.

Increments

the flashing digit.

Decrements

the flashing digit.

Moves the flashing digit

to the right

.

Moves the flashing digit

to the left

.

Use the “Enter Number” mode to enter a number with the appropriate units.

Use “Enter” for those operations that do not require units to be specified (AM Level,

Offset, % Duty, and Store/Recall State).

3

The Front-Panel Menu at a Glance

T he menu is organized in a top-down tree structure with three levels.

A: MODulation MENU

1: AM SHAPE

Õ 2: AM SOURCE Õ 3: FM SHAPE Õ 4: BURST CNT Õ 5: BURST RATE Õ

Õ 6: BURST PHAS Õ 7: BURST SRC Õ 8: FSK FREQ Õ 9: FSK RATE Õ 10: FSK SRC

B: SWP (Sweep) MENU

1: START F

Õ 2: STOP F Õ 3: SWP TIME Õ 4: SWP MODE

C: EDIT MENU

*

1: NEW ARB

Õ [ 2: POINTS ] Õ [ 3: LINE EDIT ] Õ [ 4: POINT EDIT ] Õ [ 5: INVERT ] Õ [ 6: SAVE AS ] Õ 7: DELETE

*

The commands enclosed in square brackets ( [ ] ) are “hidden” until you make a selection from the

NEW ARB command to initiate a new edit session.

D: SYStem MENU

1: OUT TERM

Õ 2: POWER ON Õ 3: ERROR Õ 4: TEST Õ 5: COMMA Õ 6: REVISION

E: Input / Output MENU

1: HPIB ADDR

Õ 2: INTERFACE Õ 3: BAUD RATE Õ 4: PARITY Õ 5: LANGUAGE

F: CALibration MENU

*

1: SECURED or [ 1: UNSECURED ]

Õ [ 2: CALIBRATE ] Õ 3: CAL COUNT Õ 4: MESSAGE

* The commands enclosed in square brackets ( [ ] ) are “hidden” unless the function generator

is UNSECURED for calibration.

4

Display Annunciators

Adrs

Rmt

Trig

AM

FM

Ext

FSK

Burst

Swp

ERROR

Offset

Shift

Num

Arb

Function generator is addressed to listen or talk over a remote interface.

Function generator is in remote mode (remote interface).

Function generator is waiting for a single trigger or external trigger (Burst, Sweep).

AM modulation is enabled.

FM modulation is enabled.

Function generator is set for an external modulation source (AM, FSK, Burst).

FSK (frequency-shift keying) modulation is enabled.

Burst modulation is enabled.

Sweep mode is enabled.

Hardware or remote interface command errors are detected.

The waveform is being output with an offset voltage.

“Shift” key has been pressed. Press “Shift” again to turn off.

“Enter Number” mode is enabled. Press “Shift-Cancel” to disable.

Arbitrary waveform function is enabled.

Sine waveform function is enabled.

Square waveform function is enabled.

Triangle waveform function is enabled.

Ramp waveform function is enabled.

To review the display annunciators, hold down the

Shift

key as you turn on the function generator.

5

The Rear Panel at a Glance

6

1 Chassis ground

2 Power-line fuse-holder assembly

3 Power-line voltage setting

4 AM modulation input terminal

5 External Trigger / FSK / Burst modulation

input terminal

6 GPIB (IEEE-488) interface connector

7 RS-232 interface connector

Use the front-panel Input / Output Menu to:

Select the GPIB or RS-232 interface (see chapter 4 in User’s Guide).

Set the GPIB bus address (see chapter 4 in User’s Guide).

Set the RS-232 baud rate and parity (see chapter 4 in User’s Guide).

In This Book

Specifications Chapter 1 lists the function generator’s specifications and describes how to interpret these specifications.

Quick Start Chapter 2 prepares the function generator for use and helps you get familiar with a few of its front-panel features.

Front-Panel Menu Operation Chapter 3 introduces you to the front-panel menu and describes some of the function generator’s menu features.

Calibration Procedures Chapter 4 provides calibration, verification, and adjustment procedures for the function generator.

Theory of Operation Chapter 5 describes block and circuit level theory related to the operation the function generator.

Service Chapter 6 provides guidelines for returning your function generator to Agilent for servicing, or for servicing it yourself.

Replaceable Parts Chapter 7 contains a detailed parts lists of the function generator.

Schematics Chapter 8 contains the function generator’s block diagram, schematics, disassembly drawings, and component locator drawings.

For information on using the Phase-Lock Option for the 33120A, refer to the User’s and Service Guide included with the Option 001.

If you have questions relating to the operation of the 33120A, call 1-800-452-4844 in the United States, or contact your nearest

Agilent Technologies Sales Office.

If you believe your 33120A has failed, refer to “Operating Checklist”,

“Types of Service Available”, and “Repackaging for Shipment” at the beginning of chapter 6.

7

8

Contents

Chapter 1 Specifications

Chapter 2 Quick Start

To prepare the function generator for use 21

If the function generator does not turn on 22

To adjust the carrying handle 24

To set the output frequency 25

To set the output amplitude 26

To set a dc offset voltage 27

To set the duty cycle 28

To output a stored arbitrary waveform 29

To output a dc voltage 30

To store the instrument state 31

To rack mount the function generator 33

Chapter 3 Front-Panel Menu Operation

Front-panel menu reference 37

A front-panel menu tutorial 39

To select the output termination 44

To output a modulated waveform 45

To unsecure the function generator for calibration 47

Chapter 4 Calibration Procedures

Agilent Calibration Services 51

Calibration Interval 51

Time Required for Calibration 51

Automating Calibration Procedures 52

Recommended Test Equipment 52

Test Considerations 53

Performance Verification Tests 54

Frequency Verification 56

Function Gain and Linearity Verification 56

DC Function Offset Verification 57

AC Amplitude Verification 57

Amplitude Flatness Verification 60

AM Modulation Depth Verification 61

Optional Performance Verification Tests 62

9

Contents

Chapter 4 Calibration Procedures (continued)

Calibration Security Code 64

Calibration Count 66

Calibration Message 66

General Calibration/Adjustment Procedure 67

Aborting a Calibration in Progress 69

Frequency and Burst Rate Adjustment 69

Function Gain and Linearity Adjustment 70

AC Amplitude Adjustment (High-Z) 70

Modulation Adjustment 72

AC Amplitude Adjustment (50

W

) 73

DC Output Adjustment 76

Duty Cycle Adjustment 77

AC Amplitude Flatness Adjustment 77

Output Amplifier Adjustment (Optional) 80

Error Messages 81

Chapter 5 Theory of Operation

Block Diagram Overview 85

Output Attenuator 86

Output Amplifier 87

AM Modulation 89

Pre-attenuator 90

Square Wave and Sync 90

Filters 92

Waveform DAC/Amplitude Leveling/Waveform RAM 93

Direct Digital Synthesis (DDS ASIC) 95

System DACs 96

Floating Logic 97

Earth-Referenced Logic 98

Power Supplies 98

Display and Keyboard 100

10

Contents

Chapter 6 Service

Operating Checklist 103

Types of Service Available 104

Repackaging for Shipment 105

Cleaning 105

Electrostatic Discharge (ESD) Precautions 106

Surface Mount Repair 106

To Replace the Power-Line Fuse 107

To Replace the Output Protection Fuse (F801) 107

Troubleshooting Hints 108

Self-Test Procedures 110

Chapter 7 Replaceable Parts

Replaceable Parts 113

Chapter 8 Schematics

33120A Block Diagram 129

Mechanical Disassembly 130

Floating Logic Schematic 131

Digital Waveform Data Synthesis 132

System DAC Schematic 133

Waveform DAC Schematic 134

Filters Schematic 135

Sync, Square Wave, and Attenuator Schematic 136

Output Amplifier Schematic 137

Output Attenuator Schematic 138

Earth Reference Logic Schematic 139

Power Supplies Schematic 140

Display and Keyboard Schematic 141

33120-66521 Component Locator Diagram 142

33120-66502 Component Locator Diagram 143

11

12

1

1

Specifications

Chapter 1 Specifications

Agilent 33120A Function Generator

WAVEFORMS

Standard Waveforms:

Sine, Square, Triangle,

Ramp, Noise, DC volts,

Sine(x)/x, Negative Ramp,

Exponential Rise,

Exponential Fall, Cardiac

Arbitrary Waveforms:

8 to 16,000 points

12 bits (including sign)

40 MSa / sec

Four 16,000-point waveforms

FREQUENCY CHARACTERISTICS

Sine:

Square:

Triangle:

Ramp:

Noise (Gaussian):

Arbitrary Waveforms:

8 to 8,192 points:

8,193 to 12,287 points:

12,288 to 16,000 points:

Resolution:

Accuracy:

Temperature Coefficient:

Aging:

100 m

Hz – 15 MHz

100 m

Hz – 15 MHz

100 m

Hz – 100 kHz

100 m

Hz – 100 kHz

10 MHz bandwidth

100 m

Hz – 5 MHz

100 m

Hz – 2.5 MHz

100 m

Hz – 200 kHz

10 m

Hz or 10 digits

10 ppm in 90 days,

20 ppm in 1 year,

18

C – 28

C

< 2 ppm /

C

< 10 ppm / yr

SINEWAVE SPECTRAL PURITY

(into 50

W

)

Harmonic Distortion

DC to 20 kHz:

20 kHz to 100 kHz:

100 kHz to 1 MHz:

1 MHz to 15 MHz:

Total Harmonic Distortion

DC to 20 kHz:

Spurious (non-harmonic)

Output (DC to 1 MHz):

Output (> 1 MHz):

Phase Noise:

-70 dBc

-60 dBc

-45 dBc

-35 dBc

< 0.04%

< -65 dBc

< -65 dBc + 6 dB/octave

< -55 dBc in a 30 kHz band

SIGNAL CHARACTERISTICS

Squarewave

Overshoot:

Asymmetry:

< 20 ns

< 4%

1% + 5 ns

20% to 80% (to 5 MHz)

40% to 60% (to 15 MHz)

Triangle, Ramp, Arb

Linearity:

Jitter:

40 ns (typical)

< 0.1% of peak output

< 250 ns to 0.5% of final value

< 25 ns

OUTPUT CHARACTERISTICS

(1)

Amplitude (into 50

W

): (2)

Accuracy (at 1 kHz):

Flatness

100 kHz to 1 MHz:

1 MHz to 15 MHz:

1 MHz to 15 MHz:

Offset (into 50

W

): (3)

(4)

Output Impedance:

Resolution:

Output Units:

Isolation:

Protection:

50 mVpp – 10 Vpp

1% of specified output

(sine wave relative to 1 kHz)

1% (0.1 dB)

1.5% (0.15 dB)

2% (0.2 dB) Ampl

3Vrms

3.5% (0.3 dB) Ampl < 3Vrms

5 Vpk ac + dc

2% of setting + 2 mV

50 ohms fixed

3 digits, Amplitude and Offset

Vpp, Vrms, dBm

42 Vpk maximum to earth

Short-circuit protected

15 Vpk overdrive < 1 minute

(1) Add 1/10th of output amplitude and offset specification

per C for operation outside of 18

C to 28

C range

(2) 100 mVpp – 20 Vpp amplitude into open-circuit load.

(3) Offset

2 X peak-to-peak amplitude.

(4) For square wave outputs, add 2% of output amplitude

14



MODULATION CHARACTERISTICS

SYSTEM CHARACTERISTICS

AM Modulation

Carrier -3 dB Freq:

Modulation:

Frequency:

Source:

Burst Modulation

Count:

10 MHz (typical)

Any internal waveform plus Arb

10 mHz to 20 kHz (

0.05% to

2.5 kHz, then decreases linearly to

0.4% at upper limit)

0% to 120%

Internal / External

REAR-PANEL INPUTS

External AM

Modulation:

External Trigger/FSK

Burst Gate: (1)

Latency:

Jitter:

5 Vpk = 100% Modulation

5 k

W

Input Resistance

TTL (low true)

1.3 m s

25 ns

Configuration Times (2)

Function Change: (3)

Change:

80 ms

30 ms

30 ms

10 ms

100 ms

< 350 ms Depth:

Source:

FM Modulation

Modulation:

Frequency:

FSK Modulation

Source:

Any internal waveform plus Arb

10 mHz to 10 kHz (

0.05% to

600 Hz, then decreases linearly to

0.8% at upper limit)

10 mHz to 15 MHz

Internal Only

5 MHz max.

1 to 50,000 cycles, or Infinite

-360

to +360

10 mHz to 50 kHz

1%

Internal or External Gate (1)

Single, External, or Internal Rate

Arb Download Times over GPIB:

Arb Length Binary ASCII Integer ASCII Real (4)

16,000 points 8 sec 81 sec 100 sec


4,096 points 2.5 sec 21 sec 26 sec

2,048 points 1.5 sec 11 sec 13 sec

Arb Download Times over RS-232 at 9600 Baud: (5)

Arb Length Binary ASCII Integer ASCII Real (6)

10 mHz to 15 MHz (

0.05% to

600 Hz, then decreases linearly to

4% at upper limit)

10 mHz to 50 kHz

Internal / External (1 MHz max.)



4,096 points 10 sec

2,048 points 6 sec

27 sec 35 sec

14 sec 18 sec

FREQUENCY SWEEP

Type:

Direction:

Start F / Stop F:

Time:

Source:

Linear or Logarithmic

Up or Down

10 mHz to 15 MHz

1 ms to 500 sec

0.1%

Single, External, or Internal

(1) Trigger source ignored when External Gate is selected.

(2) Time to change parameter and output the new signal.

(3) Modulation or sweep off.

(4) Times for 5-digit and 12-digit numbers.

(5) For 4800 baud, multiply the download times by two;

For 2400 baud, multiply the download times by four, etc.

(6) Time for 5-digit numbers. For 12-digit numbers,

multiply the 5-digit numbers by two.

1

15



GENERAL SPECIFICATIONS

Power Supply: (1)

Power-Line Frequency:

100V / 120V / 220V / 240V 10%

(switch selectable)

50 Hz to 60 Hz 10% and

400 Hz

10%. Automatically sensed at power-on.

Power Installation:

Power Consumption:

Operating Environment:

Storage Environment:

State Storage Memory:

CAT II

50 VA peak (28 W average)

0

C to 55

C

80% Relative Humidity to 40

C

Indoor or sheltered location

-40

C to 70

C

Power-off state automatically saved. Three (3) User-

Configurable Stored States,

Arbitrary waveforms stored separately.

Dimensions (W x H x D)

Weight:

254.4 mm x 103.6 mm x 374 mm

212.6 mm x 88.5 mm x 348.3 mm

4 kg (8.8 lbs)

Safety Designed to:

EMC:

Vibration and Shock:

Acoustic Noise:

Warm-Up Time:

Warranty:

Remote Interface:

Programming Language:

Accessories Included:

EN61010, CSA1010, UL-1244

EN61326, 1:1997 + 1A:1998

MIL-T-28800E, Type III, Class 5

(data on file)

30 dBa

1 hour

3 years standard

IEEE-488 and RS-232 standard

SCPI-1993, IEEE-488.2

User’s Guide, Service Guide,

Quick Reference Card,

IntuiLink Arb software,

RS-232 cable, Test Report, and power cord.

N10149

(1) For 400 Hz operation at 120 Vac, use the 100 Vac

16



PRODUCT DIMENSIONS

1

TOP

All dimensions are shown in millimeters.

17

18

2

2

Quick Start

Quick Start

One of the first things you will want to do with your function generator is to become acquainted with its front panel. We have written the exercises in this chapter to prepare the function generator for use and help you get familiar with some of the front-panel operations.

The front panel has two rows of keys to select various functions and operations. Most keys have a shifted function printed in blue above the key. To perform a shifted function, press

Shift

(the

Shift

annunciator will turn on). Then, press the key that has the desired label above it. For example, to select the

AM

(amplitude modulation) function, press

Shift AM

(the shifted version of the key).

If you accidentally press

Shift

, just press it again to turn off the

Shift

annunciator.

Most keys also have a number printed in green next to the key. To enable the number mode, press

Enter Number

(the

Num

annunciator will turn on).

Then, press the keys that have the desired numbers printed next to them.

For example, to select the number “10”, press

Enter Number 1 0

(next to the

and Recall keys).

If you accidentally press

Enter Number

, just press

Shift Cancel

to turn off the

Num

annunciator.

20

Chapter 2 Quick Start

To prepare the function generator for use

To prepare the function generator for use

The following steps help you verify that the function generator is ready for use.

1 Check the list of supplied items.

Verify that you have received the following items with your function generator. If anything is missing, contact your nearest Agilent

Technologies Sales Office.

One power cord.

One RS-232 serial cable.

á

One User’s Guide.

This Service Guide.

One folded Quick Reference card.

Certificate of Calibration.

Agilent IntuiLink Arb Waveform Generation Software.

2 Connect the power cord and turn on the function generator.

If the function generator does not turn on, see chapter 6 for troubleshooting information. The front-panel display will light up while the function generator performs its power-on self-test. The

GPIB

bus address is displayed. Notice that the function generator powers up in the sine wave function at 1 kHz with an amplitude of 100 mV peak-to-peak (into a 50

W termination).

To review the power-on display with all annunciators turned on, hold down

Shift

as you turn on the function generator.

3 Perform a complete self test.

The complete self-test performs a more extensive series of tests than those performed at power-on. Hold down

Shift as you press the Power switch to turn on the function generator; hold down the key for more than

5 seconds. The self-test will begin when you release the key.

If the self-test is successful, “

PASS

” is displayed on the front panel.

If the self-test is not successful, “

FAIL

” is displayed and the

ERROR

annunciator turns on. See chapter 6 for instructions on returning the function generator to Agilent for service.

2

21


If the function generator does not turn on

If the function generator does not turn on

Use the following steps to help solve problems you might experience when turning on the function generator. If you need more help, see chapter 6 for instructions on returning the function generator to

Agilent for service.

1 Verify that there is ac power to the function generator.

First, verify that the function generator’s Power switch is in the

“On” position. Also, make sure that the power cord is firmly plugged into to the power module on the rear panel. You should also make sure that the power source you plugged the function generator into is energized.

2 Verify the power-line voltage setting.

The line voltage is set to the proper value for your country when the function generator is shipped from the factory. Change the voltage setting if it is not correct. The settings are: 100, 120, 220, or 240 Vac

(for 230 Vac operation, use the 220 Vac setting).

See the next page if you need to change the line-voltage setting.

3 Verify that the power-line fuse is good.

The function generator is shipped from the factory with a 500 mAT fuse installed. This is the correct fuse for all line voltages.

See the next page if you need to change the power-line fuse.

To replace the 500 mAT fuse, order Agilent part number 2110-0458.

22


If the function generator does not turn on

1

Remove the power cord. Remove the

fuse-holder assembly from the rear panel.

2

Remove the line-voltage selector from

the assembly.

2

Fuse: 500 mAT (for all line voltages)

Part Number: 2110-0458

3

Rotate the line-voltage selector until the

correct voltage appears in the window.

4

Replace the fuse-holder assembly in

the rear panel.

100, 120, 220 (230), or 240 Vac

Verify that the correct line voltage is selected and the power-line fuse is good.

23


To adjust the carrying handle

To adjust the carrying handle

To adjust the position, grasp the handle by the sides and pull outward.

Then, rotate the handle to the desired position.

Bench-top viewing positions position

24


To set the output frequency

Freq

Enter Number

1 . 2

¾

MHz m Vpp

To set the output frequency

At power-on, the function generator outputs a sine wave at 1 kHz with an amplitude of 100 mV peak-to-peak (into a 50

W termination).

The following steps show you how to change the frequency to 1.2 MHz.

1 Enable the frequency modify mode.

The displayed frequency is either the power-on value or the previous frequency selected. When you change functions, the same frequency is used if the present value is valid for the new function.

1.000,000,0 KHz

2 Enter the magnitude of the desired frequency.

1

Notice that the

Num

annunciator turns on and “

ENTER NUM

” flashes on the display, indicating that the number mode is enabled.

1.2

2

To cancel the number mode, press

Shift Cancel

.

3 Set the units to the desired value.

The units are selected using the arrow keys on the right side of the front panel. As soon as you select the units, the function generator outputs the waveform with the displayed frequency. To turn off the flashing digit,

move the cursor to the left of the display using the arrow keys.

1.200,000,0 MHz

1

You can also use the knob and arrow keys to enter a number.

25


To set the output amplitude

Ampl

Enter Number

5 0

Shift

¿ kHz m Vrms

To set the output amplitude

At power-on, the function generator outputs a sine wave with an amplitude of 100 mV peak-to-peak (into a 50

W termination).

The following steps show you how to change the amplitude to 50 mVrms.

1 Enable the amplitude modify mode.

The displayed amplitude is either the power-on value or the previous amplitude selected. When you change functions, the same amplitude is used if the present value is valid for the new function.

100.0 mVPP

2 Enter the magnitude of the desired amplitude.

1

Notice that the

Num


ENTER NUM


50


Shift Cancel

.


The units are selected using the arrow keys on the right side of the front panel. As soon as you select the units, the function generator outputs the waveform with the displayed amplitude. To turn off the flashing digit,

move the cursor to the left of the display using the arrow keys.

50.00 mVRMS

1


26


To set a dc offset voltage

Offset

To set a dc offset voltage

At power-on, the function generator outputs a sine wave with a dc offset voltage of 0 volts (into a 50

W termination). The following steps show you

how to change the offset to –1.5 mVdc.

2

1 Enable the offset modify mode.

The displayed offset voltage is either the power-on value or the previous offset selected. When you change functions, the same offset is used if the present value is valid for the new function.

+0.000 VDC

Enter Number

1 . 5

2 Enter the magnitude of the desired offset.

1

Notice that the

Num


ENTER NUM

” flashes on the display, indicating that the number mode is enabled. Notice that

toggles the displayed value between

+

and – .

-1.5

Shift

¿ kHz m Vrms


Shift Cancel

.


At this point, the function generator outputs the waveform with the displayed offset. Notice that the

Offset

annunciator turns on, indicating that the waveform is being output with an offset. The annunciator will turn on when the offset is any value other than 0 volts. To turn off the

flashing digit, move the cursor to the left of the display using the arrow keys.

-01.50 mVDC

1


27


To set the duty cycle

Shift % Duty

To set the duty cycle

Applies only to square waves. At power-on, the duty cycle for square waves is 50%. You can adjust the duty cycle for a square waveform from 20% to 80%, in increments of 1% (for frequencies above 5 MHz, the range is 40% to 60%). The following steps show you how to change the duty cycle to 45%.

1 Select the square wave function.

Notice that the annunciator turns on, indicating that the square wave function is enabled.

2 Enable the duty cycle modify mode.

The displayed duty cycle is either the power-on value or the previous value selected.

50 % DUTY

Enter Number

4 5

Enter

This message appears on the display for approximately 10 seconds.

Repeat this step as needed.

3 Enter the desired duty cycle.

1

Notice that the

Num


ENTER NUM


45


Shift Cancel

.

4 Output the waveform with the displayed duty cycle.

45 % DUTY

1


28


To output a stored arbitrary waveform

To output a stored arbitrary waveform

There are five built-in arbitrary waveforms stored in non-volatile memory for your use. You can output these waveforms directly from non-volatile memory. The following steps show you how to output an “exponential rise”

waveform from memory.

2

Shift Arb List

1 Display the list of arbitrary waveforms.

The list contains the five built-in arbitrary waveforms (sinc, negative ramp, exponential rise, exponential fall, and cardiac). The list may also contain up to four user-defined arbitrary waveform names. The first choice on this level is “

SINC

”.

SINC

>

>

Enter



2 Move across to the

EXP_RISE choice.

1

EXP_RISE

3 Select and output the displayed arbitrary waveform.

Notice that the

Arb

annunciator turns on, indicating that the output is an arbitrary waveform. The waveform is output using the present settings for frequency, amplitude, and offset unless you change them.

The selected waveform is now assigned to the

Arb

key. Whenever you press this key, the selected arbitrary waveform is output.

1

You can also use the knob to scroll left or right through the choices in the list.

29


To output a dc voltage

To output a dc voltage

In addition to generating waveforms, you can also output a dc voltage in the range

5 Vdc (into a 50W termination). The following steps show you

how to output +155 mVdc.

Enter Number

1 5 5

Shift

¿ kHz m Vrms

To enter the dc voltage mode, press the

Offset key or any key in the top row of function keys and hold it down for more than 2 seconds. The displayed voltage is either the power-on value or the previous offset voltage selected.

DCV

+0.000 VDC

2 Enter the magnitude of the desired voltage.

1

Notice that the

Num


ENTER NUM


155


Shift Cancel

.


At this point, the function generator outputs the displayed dc voltage.

Notice that the

Offset

annunciator turns on (all other annunciators are off), indicating that a dc voltage is being output. The annunciator will turn on when the offset is any value other than 0 volts.

+155.0 mVDC

1


30


To store the instrument state

Shift Store

¾

Enter

To store the instrument state

You can store up to three different instrument states in non-volatile memory. This enables you to recall the entire instrument configuration with just a few key presses from the front panel. The following steps show

you how to store and recall a state.

2

1 Set up the function generator to the desired configuration.

The state storage feature “remembers” the function, frequency, amplitude, dc offset, duty cycle, as well as any modulation parameters.

2 Turn on the state storage mode.

Three memory locations (numbered 1, 2, and 3) are available to store instrument configurations. The instrument configuration is stored in

non-volatile memory and is remembered when power has been off.

STORE 1



3 Store the instrument state in memory location “2”.

1

Use the up and down arrow keys to select the memory location.

STORE 2

To cancel the store operation, press

Shift Store

again or let the display time-out after 10 seconds.

4 Save the instrument state.

The instrument state is now stored. To recall the stored state, turn to the next page.

1

You can also use the knob or “enter number” mode to enter a memory location.

31


To store the instrument state

To verify that the state was stored properly, you can turn the power off before recalling the state.

Recall

5 Recall the stored instrument state.

To recall the stored state, you must use the same memory location used previously to store the state. Use the up and down arrow keys to change the displayed storage location.

RECALL 2

Enter

To cancel the restore operation, press

Recall

again.



6 Restore the instrument state.

The function generator should now be configured in the same state as when you stored the setup on the previous page.

When power is turned off, the function generator automatically stores its state in memory location “0”. You can recall the power-down state, but you cannot store the state to location “0” from the front panel.

Use the POWER ON ENABLE command in the SYS MENU to automatically recall the power-down state when power is turned on.

See chapter 3 for more information on using the front-panel menus.

32


To rack mount the function generator

To rack mount the function generator

You can mount the function generator in a standard 19-inch rack cabinet using one of three optional kits available. Instructions and mounting hardware are included with each rack-mounting kit.

Any Agilent System II instrument of the same size can be rack-mounted beside the 33120A Function Generator.

Remove the carrying handle, and the front and rear rubber bumpers, before rack-mounting the function generator.

2

To remove the handle, rotate it to the vertical position and pull the ends outward.

Front Rear (bottom view)

To remove the rubber bumper, stretch a corner and then slide it off.

33


To rack mount the function generator

To rack mount a single instrument, order adapter kit 5063-9240.

To rack mount two instruments side-by-side, order lock-link kit 5061-9694 and flange kit 5063-9212.

To install one or two instruments in a sliding support shelf, order shelf 5063-9255, and slide kit 1494-0015 (for a single instrument, also order filler panel 5002-3999).

34

3

3

Front-Panel

Menu Operation

Front-Panel Menu Operation

By now you should be familiar with some of the basic features of the front panel. Chapter 2 shows you how to prepare the function generator for use and describes a few of the front-panel features. If you are not familiar with this information, we recommend that you read chapter 2, “Quick Start,” starting on page 19.

Chapter 3 introduces you to the use of the front-panel menu. This chapter

does not give a detailed description of every front-panel key or menu operation. It does, however, give you an overview of front-panel menu operations related to verification, adjustment and service. See chapter 3

“Features and Functions” in the User’s Guide for a complete discussion of the function generator’s capabilities and operation.

If you purchased the Phase-Lock Option for the 33120A, an additional menu

(G: PHASE MENU)

is available from the front panel. For information on using the Phase-Lock Option, refer to the User’s and Service

Guide included with Option 001.

36

Chapter 3 Front-Panel Menu Operation

Front-panel menu reference

Front-panel menu reference

A: MODulation MENU

1: AM SHAPE

Õ

2: AM SOURCE

Õ

3: FM SHAPE

Õ

4: BURST CNT

Õ

5: BURST RATE

Õ

Õ

6: BURST PHAS

Õ

7: BURST SRC

Õ

8: FSK FREQ

Õ

9: FSK RATE

Õ

10: FSK SRC

1: AM SHAPE

2: AM SOURCE

3: FM SHAPE

4: BURST CNT

5: BURST RATE

6: BURST PHAS

7: BURST SRQ

8: FSK FREQ

9: FSK RATE

10: FSK SRC

Selects the shape of the AM modulating waveform.

Enables or disables the internal AM modulating source.

Selects the shape of the FM modulating waveform.

Sets the number of cycles per burst (1 to 50,000 cycles).

Sets the burst rate in Hz for an internal burst source.

Sets the starting phase angle of a burst (-360 to +360 degrees).

Selects an internal or external gate source for burst modulation.

Sets the FSK “hop” frequency.

Selects the internal FSK rate between the carrier and FSK frequency.

Selects an internal or external source for the FSK rate.

B: SWP (Sweep) MENU

1: START F

Õ

2: STOP F

Õ

3: SWP TIME

Õ

4: SWP MODE

1: START F

2: STOP F

3: SWP TIME

4: SWP MODE

Sets the start frequency in Hz for sweeping.

Sets the stop frequency in Hz for sweeping.

Sets the repetition rate in seconds for sweeping.

Selects linear or logarithmic sweeping.

C: EDIT MENU *

1: NEW ARB

Õ

2: POINTS

Õ

[3: LINE EDIT]

Õ

[4: POINT EDIT]

Õ

[5: INVERT]

Õ

[6: SAVE AS]

Õ

7:DELETE

1: NEW ARB

2: POINTS

3: LINE EDIT

4: POINT EDIT

5: INVERT

6: SAVE AS

7: DELETE

Initiates a new arb waveform or loads the selected arb waveform.

Sets the number of points in a new arb waveform (8 to 16,000 points).

Performs a linear interpolation between two points in the arb waveform.

Edits the individual points of the selected arb waveform.

Inverts the selected arb waveform by changing the sign of each point.

Saves the current arb waveform in non-volatile memory.

Deletes the selected arb waveform from non-volatile memory.

3

* The commands enclosed in square brackets ( [ ] ) are “hidden” until you make a selection from the NEW ARB command to initiate a new edit session.

37


Front-panel menu reference

D: SYStem MENU

1: OUT TERM

Õ

2: POWER ON

Õ

3: ERROR

Õ

4: TEST

Õ

5: COMMA

Õ

6:REVISION

1: OUT TERM

2: POWER ON

3: ERROR

4: TEST

5: COMMA

6: REVISION

Selects the output termination (50

W or high impedance).

Enables or disables automatic power-up in power-down state “0”.

Retrieves errors from the error queue (up to 20 errors).

Performs a complete self-test.

Enables or disables a comma separator between digits on the display.

Displays the function generator’s firmware revision codes.

E: Input / Output MENU

1: HPIB ADDR

Õ

2: INTERFACE

Õ

3: BAUD RATE

Õ

4: PARITY

Õ

5: LANGUAGE

1: HPIB ADDR

2: INTERFACE

3: BAUD RATE

4: PARITY

5: LANGUAGE

Sets the GPIB bus address (0 to 30).

Selects the GPIB or RS-232 interface.

Selects the baud rate for RS-232 operation.

Selects even, odd, or no parity for RS-232 operation.

Verifies the interface language: SCPI.

F: CALibration MENU *

1: SECURED

Õ

[1: UNSECURED]

Õ

[2: CALIBRATE]

Õ

3: CAL COUNT

Õ

4: MESSAGE

1: SECURED

1: UNSECURED

2: CALIBRATE

3: CAL COUNT

4: MESSAGE

The function generator is secured against calibration; enter code to unsecure.

The function generator is unsecured for calibration; enter code to secure.

Performs individual calibrations; must be UNSECURED.

Reads the total number of times the function generator has been calibrated.

Reads the calibration string (up to 11 characters) entered from remote.

* The commands enclosed in square brackets ( [ ] ) are “hidden” unless the function generator is UNSECURED for calibration.

38


A front-panel menu tutorial

A front-panel menu tutorial

This section is a step-by-step tutorial which shows you how to use the front-panel menu. We recommend that you spend a few minutes with this tutorial to get comfortable with the structure and operation of the menu before attempting verification, calibration, or adjustments.

The menu is organized in a top-down tree structure with three levels

(menus, commands, and parameters). You move down ¿ or up

¾ the menu tree to get from one level to the next. Each of the three levels has several horizontal choices which you can view by moving left

< or right

>

.

3

Commands

Parameters

Menus

The menu is organized in a top-down tree structure with three levels.

To turn on the menu, press

Shift Menu On/Off

.

To turn off the menu, press

Shift Menu On/Off

.

To execute a menu command, press

Enter

.

To recall the last menu command that was executed, press

Shift Recall Menu

.

To turn off the menu at any time without saving changes, press

Shift Cancel

.

39



Messages Displayed During Menu Use

pressed

¾ while on the “ level of the menu and you cannot go any higher.

MENUS

” level; this is the top

To turn off the menu, press

Shift Menu On/Off

. To move across the choices on

a level, press

< or

>

. To move down a level, press

¿

.

MENUS

You are on the “

MENUS

” level. Press

< or

> to view the choices.

COMMANDS

You are on the “

COMMANDS

” level. Press

< or

> to view the command choices within the selected menu group.

PARAMETER You are on the “

PARAMETER

” level. Press

< or

> to view and edit the parameter for the selected command.

MENU BOTTOM You

¿ while on the “

PARAMETER

” level; this is the bottom level of the menu and you cannot go any lower.

To turn off the menu, press

Shift Menu On/Off

. To move up a level, press

¾

.

ENTERED The change made on the “

PARAMETER

” level is saved. This is displayed after you press

Enter

(Menu Enter) to execute the command.

MIN VALUE The value you specified on the “

PARAMETER

” level is too small for the selected command. The minimum value allowed is displayed for you to edit.

MAX VALUE The value you specified on the “

PARAMETER

” level is too large for the selected command. The maximum value allowed is displayed for you to edit.

EXITING You will see this message if you turn off the menu by pressing

Shift Menu On/Off or

Shift Cancel

. You did not edit any values on the

“

PARAMETER

” level and changes were

NOT

saved.

NOT ENTERED You will see this message if you turn off the menu by pressing

Shift Menu On/Off or

Shift Cancel

. You did some editing of parameters but the changes were

NOT

saved. Press

Enter

(Menu Enter) to save changes made on the “

PARAMETER

” level.

40



Menu Example 1

Shift

Menu On/Off

The following steps show you how to turn on the menu, move up and down between levels, move across the choices on each level, and turn off the menu. In this example, you will restore the function generator to the

power-on default state. This procedure is recommended before performing the verification procedures in chapter 4.

1 Turn on the menu.

You enter the menu on the “

MENUS

” level. The

MOD MENU

is your first choice on this level.

> > >

A: MOD MENU


SYS MENU

choice on this level.

1

There are six menu group choices available on the “

MENUS

” level. Each choice has a letter prefix for easy identification (

A:

,

B:

, etc.).

3

¿

>

D: SYS MENU

3 Move down to the “

COMMANDS

” level within the

SYS MENU

.

The

OUT TERM

command is your first choice on this level.

1: OUT TERM


POWER ON

command on this level.

1

There are six command choices available in the

SYS MENU

. Each choice on this level has a number prefix for easy identification (

1:

,

2:

, etc.).

2: POWER ON

1

You can also use the knob to scroll left or right through the choices on each level of the menu.

41

¿

>

Enter



5 Move down a level to the “

PARAMETER

” choices.

The first parameter choice is “

DEFAULT

” for the

POWER ON command

(“

DEFAULT

” is the factory setting and is stored in non-volatile memory).

DEFAULT


“LAST STATE”

choice.

1

There are two parameter choices for

POWER ON

.

LAST STATE

7 Save the change and turn off the menu.

The function generator beeps and displays a message to show that the change is now in effect. You are then exited from the menu.

ENTERED

8 Cycle the power to restore the default values.

Turn the function generator OFF and then ON. The default output state will now be in effect (1 kHz sine wave, 100 mV peak-to-peak,

50

W termination).

1


42



Menu Example 2

Some commands in the menu require that you enter a numeric parameter value. The following steps show you how to enter a number in the menu. For this example, you will change the output amplitude.

Ampl

<

^ ^ ^

1 Select amplitude adjustment

The function generator displays the current output amplitude.

100.0 mVPP

2 Move the flashing cursor over to edit the first digit.

The cursor movement wraps around.

100.0 mVPP

3 Increment the first digit until 300.0 mVPP is displayed.

1

The output amplitude of the function changes as you adjust the displayed value.

300.0 mVPP

3

1


43


To select the output termination

To select the output termination

The function generator has a fixed output impedance of 50 ohms on the

OUTPUT terminal. You can specify whether you are terminating the output into a 50

W

load or an open circuit. Incorrect impedance matching between the source and load will result in an output amplitude or dc offset which does not match the specified value.

Shift


Menu On/Off

> > >

A: MOD MENU

2 Move across to the SYS MENU choice on this level.

1

¿

¿ >

Enter

D: SYS MENU

3 Move down a level to the

OUT TERM

command.

1: OUT TERM

4 Move down a level and then across to the

HIGH Z

choice.

1

With the output termination set to “

HIGH Z

”, the function generator allows you to set the unloaded (open circuit) output voltage.

HIGH Z


The function generator beeps and displays a message to show that the change is now in effect. You are then exited from the menu.

1


44


To output a modulated waveform

To output a modulated waveform

A modulated waveform consists of a carrier and a modulating waveform.

In

AM

(amplitude modulation), the amplitude of the carrier is varied by the amplitude of the modulating waveform. For this example, you will

output an AM waveform with 80% modulation depth. The carrier will be a

5 kHz sine wave and the modulating waveform will be a 200 Hz sine wave.

3

Shift AM

Shift

< Recall Menu

1 Select the function, frequency, and amplitude of the carrier.

For the carrier waveform, you can select a sine, square, triangle, ramp, or arbitrary waveform. For this example, select a 5 kHz sine wave with

an amplitude of 5 Vpp.

2 Select AM.

Notice that the

AM

annunciator turns on.

3 Use the menu to select the shape of the modulating waveform.

After you enable the

AM

function, the “recall menu” key will automatically take you to the

AM SHAPE

command in the

MOD MENU

.

1: AM SHAPE

45


To output a modulated waveform

¿

Enter

Shift Freq

Shift Level

4 Move down a level verify that “

SINE

” is selected.

For the modulating waveform, you can select a sine, square, triangle, ramp, noise, or arbitrary waveform. For this example, you will modulate

the carrier with a sine waveform. Notice that the

AM

annunciator flashes, indicating that the displayed parameter is for

AM

.

SINE


The modulating waveform is now a sine waveform.

ENTERED

6 Set the modulating frequency to 200 Hz.

Notice that the

AM

annunciator flashes, indicating that the displayed frequency is the modulating frequency. Also notice that the modulating frequency is displayed with fewer digits than the carrier frequency.

MOD 200.0 Hz



7 Set the modulation depth to 80%.

Notice that the

AM

annunciator flashes, indicating that the displayed percentage is the

AM

depth (also called percent modulation).

080 % DEPTH



At this point, the function generator outputs the

AM

waveform with the specified modulation parameters.

46


To unsecure the function generator for calibration

Shift

Menu On/Off

<

¿

To unsecure the function generator for calibration

The function generator can use a calibration security code to prevent unauthorized or accidental calibration. This procedure shows you how to unsecure the function generator for calibration.


A: MOD MENU

2 Move across to the CAL MENU choice on this level.

F: CAL MENU


SECURED

command.

1: SECURED

3

If the display shows UNSECURED, you do not need to perform this procedure to execute a calibration.

47


To unsecure the function generator for calibration

¿

4 Move down to the “parameters” level.

^000000:CODE

0 3 3

1 2 0

ENTER

5 Unsecure the function generator by entering the security code.

^033120:CODE

The security code is set to “HP33120” when the function generator is shipped from the factory. The security code is stored in non-volatile memory and does not change when the power has been off or after a remote interface reset.

To enter the security code from the front panel, enter only the six digits.

To enter the security code from the remote interface, you may enter up to

12 characters. Use the knob or arrow keys to move left or right between digits. Use the up or down arrow keys to change the digits.

To re-secure the function generator following a calibration, perform this procedure again.

Additional information about the calibration security feature is given on page 64.

48

4

Calibration

Procedures

4

Calibration Procedures

This chapter contains procedures for verification of the function generator’s performance and adjustment (calibration). The chapter is divided into the following sections:

Agilent Calibration Services . . . . . . . . . . . . . . 51

Calibration Interval . . . . . . . . . . . . . . . . . . . 51

Time Required for Calibration . . . . . . . . . . . . . 51

Automating Calibration Procedures . . . . . . . . . . 52

Recommended Test Equipment . . . . . . . . . . . . . 52

Test Considerations . . . . . . . . . . . . . . . . . . . 53

Performance Verification Tests . . . . . . . . . . . . . 54

Frequency Verification . . . . . . . . . . . . . . . . . 56

Function Gain and Linearity Verification . . . . . . . 56

DC Function Offset Verification . . . . . . . . . . . . 57

AC Amplitude Verification . . . . . . . . . . . . . . . 57

Amplitude Flatness Verification . . . . . . . . . . . . 60

AM Modulation Depth Verification . . . . . . . . . . . 61

Optional Performance Verification Tests . . . . . . . . 62

Calibration Security Code . . . . . . . . . . . . . . . . 64

Calibration Count . . . . . . . . . . . . . . . . . . . . 66

Calibration Message . . . . . . . . . . . . . . . . . . . 66

General Calibration/Adjustment Procedure . . . . . . 67

Aborting a Calibration in Progress . . . . . . . . . . . 69

Frequency and Burst Rate Adjustment . . . . . . . . 69

Function Gain and Linearity Adjustment . . . . . . . 70

AC Amplitude Adjustment (High-Z) . . . . . . . . . . 70

Modulation Adjustment . . . . . . . . . . . . . . . . . 72

AC Amplitude Adjustment (50W) . . . . . . . . . . . . 73

DC Output Adjustment . . . . . . . . . . . . . . . . . 76

Duty Cycle Adjustment . . . . . . . . . . . . . . . . . 77

AC Amplitude Flatness Adjustment . . . . . . . . . . 77

Output Amplifier Adjustment (Optional) . . . . . . . 80

Error Messages . . . . . . . . . . . . . . . . . . . . . 81

50

Chapter 4 Calibration Procedures

Agilent Calibration Services

Closed-Case Electronic Calibration The function generator features closed-case electronic calibration since no internal mechanical adjustments are required for normal calibration. The function generator calculates correction factors based upon the input reference value you set.

The new correction factors are stored in non-volatile memory until the next calibration adjustment is performed (non-volatile memory does not change when power has been off or after a remote interface reset).

Agilent Calibration Services

When your function generator is due for calibration, contact your local

Agilent Service Center for a low-cost recalibration. The 33120A Function

Generator is supported on automated calibration systems which allow

Agilent to provide this service at competitive prices. Calibrations to

MIL-STD-45662 are also available at competitive prices.

Calibration Interval

The function generator should be calibrated on a regular interval determined by the measurement accuracy requirements of your application. A 1- or 2-year interval is adequate for most applications.

Agilent does not recommend extending calibration intervals beyond two years for any application.

Whatever calibration interval you select, Agilent recommends that complete re-adjustment should always be performed at the calibration interval.

This will increase your confidence that the 33120A will remain within specification for the next calibration interval. This criteria for re-adjustment provides the best long-term stability. Performance data measured using this method can be used to extend future calibration intervals.

4

Time Required for Calibration

The 33120A can be automatically calibrated under computer control.

With computer control you can perform the complete calibration procedure and performance verification tests in less than 15 minutes.

Manual calibrations using the recommended test equipment will take approximately 45 minutes.

51


Automating Calibration Procedures

Automating Calibration Procedures

You can automate the complete verification and adjustment procedures outlined in this chapter if you have access to programmable test equipment. You can program the instrument configurations specified for each test over the remote interface. You can then enter readback verification data into a test program and compare the results to the appropriate test limit values.

You can also enter calibration constants from the remote interface.

Remote operation is similar to the local front-panel procedure. You can use a computer to perform the adjustment by first selecting the required setup. The calibration value is sent to the function generator and then the calibration is initiated over the remote interface. The function generator must be unsecured prior to initiating the calibration procedure.

For further detailing on programming the function generator, see chapters 3 and 4 in the Agilent 33120A User’s Guide.

Recommended Test Equipment

The test equipment recommended for the performance verification and adjustment procedures is listed below. If the exact instrument is not available, use the accuracy requirements shown to select substitute calibration standards.

Use*

Q,P,O,T

Instrument

50

W feedthrough load

6 1/2 digit Digital

Multimeter (DMM)

Requirements

50

W 0.1 W

20 Vdc

0.01%

Integrating ACrms

10 Vacrms

0.1%

1kHz to 15 MHz

Recommended Model

Agilent 34401A

Thermal Voltage Converter

(50

W termination type)

or

Power Meter

or

Wideband ACrms Meter

Frequency Meter

Oscilloscope

Spectrum Analyzer

100 kHz to 15 MHz

1 VAC rms

0.5%

1 kHz to 20 MHz

1 ppm accuracy

100 MHz

Response to 90 MHz

* Q = Quick Verification

P = Performance Verification Tests

3 Volt

Agilent E4418A with

Agilent 8482A

and 20 dB attenuator

—

Agilent 53131A

Agilent 54624A

Agilent 8560EC

O= Optional Verification Tests

T = Troubleshooting

52

Q,P,T

Q,P

Q,P,T

T

O


Test Considerations

Test Considerations

To ensure proper instrument operation, verify that you have selected the correct power line voltage prior to attempting any test procedure in this chapter. See page 22 in chapter 2 for more information.

For optimum performance, all test procedures should comply with the following recommendations:

Verify the function generator is set to the default power on state

(power on default). A procedure is given on page 41.

Make sure that the calibration ambient temperature is stable and between 18

C and 28 C.

Make sure ambient relative humidity is less than 80%.

Allow a 1-hour warm-up period before verification or adjustment.

Use only RG-58 or equivalent 50W cable.

Keep cables as short as possible, consistent with the impedance requirements.

4

53


Performance Verification Tests

Q

P

O

Performance Verification Tests

The performance verification tests use the function generator’s specifications listed in chapter 1, “Specifications,” starting on page 13.

You can perform four different levels of performance verification tests:

Self-Test A series of internal verification tests that give a high confidence that the function generator is operational.

Quick Verification A combination of the internal self-tests and selected verification tests.

Performance Verification Tests An extensive set of tests that are recommended as an acceptance test when you first receive the function generator or after performing adjustments.

Optional Verification Tests Tests not performed with every calibration. These tests can can be used to verify additional instrument specifications following repairs to specific circuits.

Self-Test

A brief power-on self-test occurs automatically whenever you turn on the function generator. This limited test assures that the function generator is capable of operation.

To perform a complete self-test hold down the

Shift

key as you press the

Power switch to turn on the function generator; hold down the key for

more than 5 seconds (a complete description of these tests can be found in chapter 6). The function generator will automatically perform the complete self-test procedure when you release the key. The self-test will complete in approximately 5 seconds.

You can perform many tests individually (or all tests at once) using the

TEST

command in the

SYS MENU

. You can also perform a self-test from the remote interface (see chapter 3 in the Agilent 33120A User’s Guide).

If the self-test is successful, “

PASS

” is displayed on the front panel.

If the self-test fails, “

FAIL

” is displayed and the

ERROR

annunciator turns on. If repair is required, see chapter 6, “Service,” for further details.

If all tests pass, you have a high confidence (90%) that the function generator is operational.

54



Quick Performance Check

The quick performance check is a combination of internal self-test and an abbreviated performance test (specified by the letter Q in the performance verification tests). This test provides a simple method to achieve high confidence in the function generator’s ability to functionally operate and meet specifications. These tests represent the absolute minimum set of performance checks recommended following any service activity.

Auditing the function generator’s performance for the quick check points

(designated by a Q) verifies performance for “normal” accuracy drift mechanisms. This test does not check for abnormal component failures.

To perform the quick performance check, do the following:

Set the function generator to the default power on state (power on default).

A procedure is given on page 41.

Perform a complete self-test. A procedure is given on page 21.

Perform only the performance verification tests indicated with the letter Q.

4

If the function generator fails the quick performance check, adjustment or repair is required.


The performance verification tests are recommended as acceptance tests when you first receive the function generator. The acceptance test results should be compared against the 1 year test limits. After acceptance, you should repeat the performance verification tests at every calibration interval.

If the function generator fails performance verification, adjustment or repair is required.

55


Frequency Verification

Frequency Verification

This test verifies the frequency accuracy of the two sources in the function generator. All output frequencies are derived from a single generated frequency, and only one frequency point is checked.

The second test verifies the burst rate frequency.

Set the function generator for each output indicated in the table below.

Use a frequency meter to measure the output frequency. Compare the measured results to the test limits shown in the table. This is a 50

W output termination test.

Agilent 33120A

Function

OUT

1

TERM

Ampl Freq

BURST

RATE

BURST

CNT

Q

Sine wave 50

W 3.5 Vrms 1.00 kHz

— —

Q

Square wave 50

W 3.5 Vrms 1.00 kHz 500 Hz 1 CYC

Measurement

Nominal

1.00 kHz

500 Hz

Error

0.02 Hz

5 Hz

Function Gain and Linearity Verification

This test verifies the output amplitude accuracy specification for sine wave, triangle wave, ramp, and square wave outputs.

Q

Q


Use a DMM to measure the function generator ACrms output voltage.

Compare the measured results to the test limits shown in the table.

This is a HIGH Z output termination test.

Function

Sine wave

Sine wave

Triangle wave

Ramp wave

Square wave

Square wave

Agilent 33120A

OUT TERM

1

Ampl

HIGH Z

HIGH Z

7.0 Vrms

5.7 Vrms

HIGH Z

HIGH Z

HIGH Z

HIGH Z

5.7 Vrms

5.7 Vrms

10.0 Vrms

8.0 Vrms

Freq

1.0 kHz

1.0 kHz

100 Hz

100 Hz

100 Hz

100 Hz

Measurement

Nominal

7.0 Vrms

5.7 Vrms

5.7 Vrms

5.7 Vrms

10.0 Vrms

8.0 Vrms

Error

0.07 Vrms

0.057 Vrms

0.057 Vrms

0.057 Vrms

0.1 Vrms

0.08 Vrms

1

Output termination set using front panel controls. HIGH Z assumes no load on output. 50

W assumes a 50W 0.1W load on output.

56


DC Function Offset Verification

Q

DC Function Offset Verification

This test verifies the DC offset and DC output specifications.


Use a DMM to measure the function generator dcV output. Compare the measured results to the test limits shown in the table. This is a HIGH Z output termination test.

Function

DC Volts

DC Volts

Agilent 33120A

OUT TERM

1

HIGH Z

HIGH Z

Ampl

10.0 Vdc

-10.0 Vdc

Measurement

Nominal

10.0 Vdc

-10.0 Vdc

Error

0.20 Vdc

0.20 Vdc

AC Amplitude Verification

This procedure is used to check the output amplitude calibration of the function generator. Verification checks are performed to check the accuracy of the pre-attenuator and post attenuator. Make sure you have

read “Test Considerations” on page 53.

Set the function generator for each output indicated in the table on the next page. Use a DMM to measure the ACrms output voltage of the function generator. Compare the measured results to the test limits shown in the table. This is a HIGH Z output termination test.

4

1



57


AC Amplitude Verification

Agilent 33120A

Function OUT TERM

1

Ampl

Q

Sine wave HIGH Z 7.0 Vrms

Sine wave

Sine wave

Sine wave

Sine wave

HIGH Z

HIGH Z

HIGH Z

HIGH Z

5.7 Vrms

5.5 Vrms

4.4 Vrms

3.5 Vrms

Sine wave

Sine wave

Sine wave

Sine wave

Sine wave

Q

Sine wave

Sine wave

Sine wave

Sine wave

Sine wave

Sine wave

Sine wave

Sine wave

Sine wave

Sine wave

Q

Sine wave

Sine wave

Sine wave

Sine wave

Q

Sine wave

HIGH Z

HIGH Z

HIGH Z

HIGH Z

HIGH Z

HIGH Z

HIGH Z

HIGH Z

HIGH Z

HIGH Z

HIGH Z

HIGH Z

HIGH Z

HIGH Z

HIGH Z

HIGH Z

HIGH Z

HIGH Z

HIGH Z

HIGH Z

0.28 Vrms

0.22 Vrms

0.17 Vrms

0.14 Vrms

0.11 Vrms

0.088 Vrms

0.070 Vrms

0.055 Vrms

0.044 Vrms

0.036 Vrms

2.8 Vrms

2.2 Vrms

1.7 Vrms

1.4 Vrms

1.1 Vrms

0.88 Vrms

0.70 Vrms

0.55 Vrms

0.44 Vrms

0.35 Vrms

1.00 kHz

1.00 kHz

1.00 kHz

1.00 kHz

1.00 kHz

1.00 kHz

1.00 kHz

1.00 kHz

1.00 kHz

1.00 kHz

1.00 kHz

1.00 kHz

1.00 kHz

1.00 kHz

1.00 kHz

Freq

1.00 kHz

1.00 kHz

1.00 kHz

1.00 kHz

1.00 kHz

1.00 kHz

1.00 kHz

1.00 kHz

1.00 kHz

1.00 kHz

Measurement

Nominal Error

7.0 Vrms

5.7 Vrms

5.5 Vrms

4.4 Vrms

3.5 Vrms

2.8 Vrms

2.2 Vrms

1.7 Vrms

1.4Vrms

1.1 Vrms

0.070 Vrms

0.057 Vrms

0.055 Vrms

0.044 Vrms

0.035 Vrms

0.028 Vrms

0.022 Vrms

0.017 Vrms

0.014 Vrms

0.011 Vrms

0.88 Vrms

0.70 Vrms

0.55 Vrms

0.44 Vrms

0.35 Vrms

0.28 Vrms

0.22 Vrms

0.0088 Vrms

0.0070 Vrms

0.0055 Vrms

0.0044 Vrms

0.0035 Vrms

0.0028 Vrms

0.0022 Vrms

0.17 Vrms

0.14 Vrms

0.11 Vrms

0.0017 Vrms

0.0014 Vrms

0.0011 Vrms

0.088Vrms

0.00088 Vrms

0.070 Vrms

0.00070 Vrms

0.055 Vrms

0.00055 Vrms

0.044 Vrms

0.00044 Vrms

0.036 Vrms

0.00036 Vrms

1



58


AC Amplitude Verification

Install the 50

W

feedthrough load between the DMM and the function generator output. Set the function generator for each output indicated in the table on the next page. Use a DMM to measure the ACrms output voltage of the function generator. Compare the measured results to the test limits shown in the table. This is a 50

W

output termination test.

Q

Q

Q

Agilent 33120A

Function OUT TERM

1

Ampl

Sine wave

Sine wave

Sine wave

Sine wave

Sine wave

Sine wave

Sine wave

Sine wave

Sine wave

Sine wave

Sine wave

Sine wave

Sine wave

Sine wave

Sine wave

Sine wave

Sine wave

Sine wave

Sine wave

Sine wave

Sine wave

Sine wave

Sine wave

Sine wave

50

W

50

W

50

W

50

W

50

W

50

W

50

W

50

W

50

W

50

W

50

W

50

W

50

W

50

W

50

W

50

W

50

W

50

W

50

W

50

W

50

W

50

W

50

W

50

W

3.5 Vrms

2.8 Vrms

2.2 Vrms

1.7 Vrms

1.4Vrms

1.1 Vrms

0.88 Vrms

0.70 Vrms

0.55 Vrms

0.44 Vrms

0.35 Vrms

0.28 Vrms

0.22 Vrms

0.17 Vrms

0.14 Vrms

0.11 Vrms

0.088Vrms

0.070 Vrms

0.055 Vrms

0.044 Vrms

0.035 Vrms

0.028 Vrms

0.022 Vrms

0.018 Vrms

Freq

1.0000 kHz

1.0000 kHz

1.0000 kHz

1.0000 kHz

1.0000 kHz

1.0000 kHz

1.0000 kHz

1.0000 kHz

1.0000 kHz

1.0000 kHz

1.0000 kHz

1.0000 kHz

1.0000 kHz

1.0000 kHz

1.0000 kHz

1.0000 kHz

1.0000 kHz

1.0000 kHz

1.0000 kHz

1.0000 kHz

1.0000 kHz

1.0000 kHz

1.0000 kHz

1.0000 kHz

Measurement

Nominal Error

3.5 Vrms

2.8 Vrms

2.2 Vrms

1.7 Vrms

1.4Vrms

0.035 Vrms

0.028 Vrms

0.022 Vrms

0.017 Vrms

0.014 Vrms

1.1 Vrms

0.88 Vrms

0.70 Vrms

0.55 Vrms

0.44 Vrms

0.35 Vrms

0.28 Vrms

0.22 Vrms

0.011 Vrms

0.0088 Vrms

0.0070 Vrms

0.0055 Vrms

0.0044 Vrms

0.0035 Vrms

0.0028 Vrms

0.0022 Vrms

0.17 Vrms

0.14 Vrms

0.0017 Vrms

0.0014 Vrms

0.11 Vrms

0.0011 Vrms

0.088Vrms

0.00088 Vrms

0.070 Vrms

0.00070 Vrms

0.055 Vrms

0.00055 Vrms

0.044 Vrms

0.00044 Vrms

0.035 Vrms

0.00035 Vrms

0.028 Vrms

0.00028 Vrms

0.022 Vrms

0.00022 Vrms

0.018 Vrms

0.00018 Vrms

4

1



59


Amplitude Flatness Verification

Amplitude Flatness Verification

This test verifies the output amplitude flatness specification at selected frequencies. If you use a TVC (recommended) or a wide band ACrms voltmeter (with a 50

W

feed through load), perform this procedure as described. If you are using a measurement device that requires a transfer measurement (for example, a power meter), make the transfer in the reference measurement at 100 kHz.

Set the function generator to the first output indicated in the table below and make a reference measurement. Select each function generator output in the table below and adjust the function generator output amplitude until the measured output is at the reference measurement. Compare the amplitude level set on the front panel to the test limits shown in the table.

This test is a 50

W

output termination test.

Function

OUT

1

TERM

Agilent 33120A

Ampl

Q

Sine wave

50

W

Sine wave 50

W

Sine wave 50

W

Q

Sine wave 50

W

Sine wave 50

W

Sine wave

50

W

Sine wave

50

W

Sine wave 50

W

Sine wave 50

W

Sine wave 50

W

Q

Sine wave

50

W

3.0 Vrms

3.0 Vrms

3.0 Vrms

3.0 Vrms

3.0 Vrms

3.0 Vrms

3.0 Vrms

3.0 Vrms

3.0 Vrms

3.0 Vrms

3.0 Vrms

Freq

1.00 kHz

100.00 kHz

500.00 kHz

1.00 MHz

3.00 MHz

5.00 MHz

7.00 MHz

9.00 MHz

11.00 MHz

13.00 MHz

15.00 MHz

Measurement

Nominal Error

<reference>

<reference>

<reference>

<reference>

<reference>

<reference>

<reference>

<reference>

<reference>

<reference>

<reference>

0.03 Vrms

0.045 Vrms

0.045 Vrms

0.06 Vrms

0.06 Vrms

0.06 Vrms

0.06 Vrms

0.06 Vrms

0.06 Vrms

0.06 Vrms

1



60


AM Modulation Depth Verification

AM Modulation Depth Verification

This test verifies the modulation depth specification.

Select each function generator output in the table below. Use a DMM to measure the function generator ACrms output voltage. Compare the measured results to the test limits shown in the table. This is a HIGH Z output termination test.

Agilent 33120A Measurement

AM Modulation

Function

OUT

1

TERM

Ampl Freq Shape Freq Depth Nominal Error

Q

Sine wave HIGH Z 1.0 Vrms 1.00 kHz Sinewave 100 Hz 0% 0.50 Vrms

0.005 Vrms

Sine wave HIGH Z 1.0 Vrms 1.00 kHz Sinewave 100 Hz 100% 0.61 Vrms

0.0061 Vrms

4

1



61


Optional Performance Verification Tests

Optional Performance Verification Tests

These tests are not intended to be performed with every calibration.

They are provided as an aid for verifying additional instrument specifications.

Square Wave Duty Cycle Verification

This test verifies the duty cycle specification of the squarewave output.

Select each function generator output in the table below. Use an integrating

DMM to measure the Vdc output of the function generator. Compare the measured results to the test limits shown in the table. This is a HIGH Z output termination test.

Function

Agilent 33120A

OUT

1

TERM

Ampl Freq

Duty

Cycle

Measurement

Nominal Error

Square wave HIGH Z 1.0 Vrms 300.00 Hz 50% 0.00 Vdc

0.020 Vdc

Square wave HIGH Z 1.0 Vrms 300.00 Hz 25% - 0.50 Vdc

0.020 Vdc

Square wave HIGH Z 1.0 Vrms 300.00 Hz 75% + 0.50 Vdc

0.020 Vdc

The DMM used for this test must be an integrating multimeter. If the first step does not measure 0 Vdc, use an oscilloscope for this test.

Do not use an auto-ranging function on the DMM for this test. Fix the

DMM measurement range at 10 Vdc.

1



62


Optional Performance Verification Tests

Distortion Verification

This test checks the Harmonic Distortion at selected frequencies and harmonics. This test requires the use of a spectrum analyzer with dynamic range, frequency range, and resolution bandwidth adequate for the measurement.

Select each function generator output in the table below. Use a spectrum analyzer connected to the function generator output. Set the fundamental frequency reference to 0 dB and measure the 2nd through 5th harmonic frequencies relative to this reference. This test is a 50

W output termination test.

Agilent 33120A Measurement harmonic

Function

OUT

1

TERM

Ampl Freq Fundamental 2nd 3rd 4th 5th reference

Sine wave

50

W

1.1 Vrms 20.00 kHz reference 40 kHz 60 kHz 80 kHz 100 kHz < 70 dB

Sine wave

50

W

1.1 Vrms 100.00 kHz reference 200 kHz 300 kHz 400 kHz 500 kHz < 60 dB

Sine wave

50

W

1.1 Vrms 1.00 MHz reference 2 MHz 3 MHz 4 MHz 5 MHz < 45 dB

Sine wave 50

W

1.1 Vrms 15.00 MHz reference 30 MHz 45 MHz 60 MHz 75 MHz < 35 dB

4

1



63


Calibration Security Code

Calibration Security Code

This feature allows you to enter a security code (electronic key) to prevent accidental or unauthorized calibrations of the function generator.

When you first receive your function generator, it is secured. Before you can adjust calibration constants you must unsecure the function generator by entering the correct security code. A procedure to unsecure the function generator is given on page 47.

The security code is set to “

HP033120

” when the function generator is shipped from the factory. The security code is stored in non-volatile memory, and does not change when power has been off or after a remote interface reset.

To secure the function generator from the remote interface, the security code may contain up to 12 alphanumeric characters as shown below.

The first character must be a letter, but the remaining characters can be letters or numbers. You do not have to use all 12 characters but the first character must always be a letter.

A _ _ _ _ _ _ _ _ _ _ _

(12 characters)

To secure the function generator from the remote interface but allow it to be unsecured from the front panel, use the eight-character format shown below. The first two characters must be “HP” and the remaining characters must be numbers. Only the last six characters are recognized

from the front panel, but all eight characters are required. (To unsecure the function generator from the front panel, omit the “HP” and enter the remaining numbers.)

H P _ _ _ _ _ _

(8 characters)

If you forget your security code, you can disable the security feature by adding a jumper inside the function generator, and then entering a new code. See the procedure on the following page.

64


Calibration Security Code

W A R N I N G

To Unsecure the Function Generator Without the Security Code

To unsecure the function generator without the correct security code, follow the steps below. A procedure to unsecure the function generator is given on page 47. Also see “Electrostatic Discharge (ESD) Precautions” in chapter 6 before beginning this procedure.

SHOCK HAZARD. Only service-trained personnel who are aware of the hazards involved should remove the instrument covers.

The procedures in this section require that you connect the power cord to the instrument with the covers removed. To avoid electrical shock and personal injury, be careful not to touch the power-line connections.

1 Disconnect the power cord and all input connections (front and rear terminals).

2 Remove the instrument cover. Refer to the disassembly drawing on page 130.

3 Connect the power cord and turn on the function generator.

4 Apply a short between the two exposed metal pads on JM101 (located near U106 and U205) as shown in the figure below.

4

5 While maintaining the short, enter any unsecure code. The function generator is now unsecured.

6 Remove the short at JM101.

7 Turn off and reassemble the function generator.

8 The function generator is now unsecured and you can enter a new security code. Be sure you take note of the new security code.

65


Calibration Count

Calibration Count

The calibration count feature provides an independent “serialization” of your calibrations. You can determine the number of times that your function generator has been calibrated. By monitoring the calibration count, you can determine whether an unauthorized calibration has been performed. Since the value increments by one for each calibration, a complete calibration increases the value by approximately 85 counts.

The calibration count is stored in non-volatile memory and does not change when power has been off or after a remote interface reset.

Your function generator was calibrated before it left the factory.

When you receive your function generator, read the calibration count to determine its value.

The calibration count increments up to a maximum of 32,767 after which it wraps around to 0. There is no way provided to program or reset the calibration count. It is an independent electronic calibration

“serialization” value.

Calibration Message

You can use the calibration message feature to record calibration information about your function generator. For example, you can store such information as the last calibration date, the next calibration due date, the function generator’s serial number, or even the name and phone number of the person to contact for a new calibration.

You can record information in the calibration message only from the remote interface. You can read the message from either the front-panel menu or the remote interface.

The calibration message may contain up to 40 characters. The function generator can display up to 11 characters of the message on the front panel; any additional characters are truncated.

The calibration message is stored in non-volatile memory, and does not change when power has been off or after a remote interface reset.

66


General Calibration/Adjustment Procedure

Shift

Menu On/Off

<

¿

>

¿

Enter

General Calibration/Adjustment Procedure

The adjustment procedures described in chapter 4 use the CAL MENU to generate and set internal calibration constants. The general menu procedure is the same for all calibration setups. The following example

demonstrates making the Frequency and Burst Rate adjustments.


A: MOD MENU

2 Move across to the CAL MENU choice on this level.

1

F: CAL MENU


UNSECURED

command.

1: UNSECURED

4

If the display shows SECURED, you will have to unsecure the function generator to perform the calibration procedures. A procedure is given on page 47.


CALIBRATE

choice.

1

2: CALIBRATE

5 Move down one level.

The display indicates the calibration setup number. You can change this number to perform individual specification adjustments.

SETUP 00

6 Begin the Frequency and Burst Rate adjustment procedure.

67


General Calibration/Adjustment Procedure

<

^

>

¿

Enter

7 Move the flashing cursor over the digit to be edited.

1

8 Change the value in the display to match the measured frequency.

1.000,0040KHz

9 Calculate and save the new value.

CALIBRATING

10 Perform the next adjustment procedure.

The setup number and function generator output is automatically set for the next adjustment procedure.

SETUP ^01

You will press ENTER twice for each calibration step, once to select the setup (as described in step 6) and once to enter the adjustment

(as described in step 9).

1

You can also use the knob to scroll left or right through the choices on each level of the menu

68


Aborting a Calibration in Progress

Aborting a Calibration in Progress

Sometimes it may be necessary to abort a calibration after the procedure has already been initiated. You can abort a calibration at any time by pressing any front-panel key (except

Shift-Cancel

). When performing a calibration from the remote interface, you can abort a calibration by issuing a remote interface device clear message or by pressing the front-panel

LOCAL

key.

Frequency and Burst Rate Adjustment

The function generator stores two calibration constants related to frequency and burst rate output. The constants are calculated from the adjustment value entered and are stored at the completion of each setup.

1 Use a frequency meter to measure the function generator output frequency for each setup in the following table. These adjustments use a 50

W output termination.

4

SETUP

Nominal Output

FREQUENCY AMPLITUDE

00 *

01

1.00 kHz

500 Hz

10 Vpp

10 Vpp

Adjustment for main frequency generator, sine wave output

Adjustment for burst rate timing, pulse output.

* A new calibration (SETUP 86 – Rev 4.0) has been added as an alternative to SETUP 00.

The new calibration outputs a 10 MHz sine wave, rather than the 1 kHz signal used for

SETUP 00. The new calibration reduces slew rate dependent errors in the frequency

measurement and is especially important when calibrating the Phase-Lock Assembly

(Option 001). Note that either setup is sufficient to calibrate the carrier frequency and

you don’t need to perform both.

2 Use the CALIBRATE menu to adjust the displayed frequency at each setup to match the measured frequency and enter the value.

3 Perform the Frequency Verification procedures on page 56.

69


Function Gain and Linearity Adjustment

Function Gain and Linearity Adjustment

The function generator stores six calibration constants related to function gain and linearity. The constants are calculated from the adjustment value entered. If the calibration procedure is aborted before all setup steps

have been completed, no calibration constants are stored.

1 Use a DMM to measure the function generator ACrms output voltage for each setup in the following table. These adjustments use a HIGH Z output termination.

SETUP

02

03

04

05

06

07

Nominal Output

FREQUENCY AMPLITUDE

1 kHz

1 kHz

100 Hz

100 Hz

100 Hz

100 Hz

7.07 V rms

5.6 V rms

5.6 V rms

5.6 V rms

10.0 V rms

1.1 Vrms

Adjustment for sine wave gain.

Adjustment for amplitude linearity.

Adjustment for triangle wave gain.

Adjustment for ramp gain.

Adjustment for square wave gain.

Adjustment for square wave linearity.

2 Use the CALIBRATE menu to adjust the displayed amplitude at each setup to match the measured amplitude and enter the value.

3 Perform the Function Gain and Linearity Verification procedures on page 56.

AC Amplitude Adjustment (High-Z)

The function generator stores twenty-two calibration constants related to

HIGH Z output, and sixteen calibration constants related to 50

W

output.

The constants are calculated from the adjustment value entered. The calibration constants are stored following completion of setup 22 (HIGH Z output) and the calibration procedure may be aborted after that point.

No calibration constants are stored if the procedures are aborted at any other setup.


70


AC Amplitude Adjustment (High-Z)

19

20

21

22

15

16

17

18

SETUP

8

9

10

11

12

13

14

27

28

29

23

24

25

26

Nominal Output

FREQUENCY

1 kHz

AMPLITUDE Adjustment for:

5.5 V rms 2 dB Output Attenuator

1 kHz

1 kHz

4.4 V rms

3.5 V rms

4 dB Output Attenuator


1 kHz

1 kHz

1 kHz

1 kHz

2.8 V rms

2.2 V rms

1.7 V rms

1.4 V rms





1 kHz

1 kHz

1 kHz

1 kHz

1 kHz

1 kHz

1 kHz

1 kHz

1.1 V rms

0.88 V rms

0.70 V rms

0.55 V rms

0.44 V rms

0.35 V rms

0.28 V rms

0.22 V rms









1 kHz

1 kHz

1 kHz

1 kHz

1 kHz

1 kHz

1 kHz

5.5 V rms 2 dB Pre-attenuator




2.2V rms 10 dB Pre-attenuator


1.4 Vrms 14 dB Pre-attenuator


3 Perform the AC Amplitude Verification procedures on page 57.

4

71


Modulation Adjustment

Modulation Adjustment

The function generator stores three calibration constants related to amplitude modulation depth. The constants are calculated from the adjustment value entered. If the calibration procedure is aborted before

all setup steps have been completed, no calibration constants are stored.


SETUP

30

31

32

Nominal Output

FREQUENCY AMPLITUDE

1 kHz

1 kHz

1 kHz

3.5 Vrms

0.707 Vrms

6.36 Vrms

Adjustment for:

0% modulation depth.




NEW CALIBRATION:

A new calibration (SETUP 85 – Rev 4.0) has

been added to eliminate a small residual error in the AM amplitude system which could potentially cause a failure of the AM amplitude verification. The new calibration operates just like the other AM calibrations (SETUP 30, 31, 32) in that the external measurement is

AC Vrms with no load. The new calibration is not allowed until the other AM gain calibrations (SETUP 30, 31, 32) are performed.

The new algorithm is designed such that the calibration should not be required again once the function generator has been calibrated at the factory. However, if you change any critical analog components which determine amplitude in AM modulation, you should perform the calibration again.

72


AC Amplitude Adjustment (50

W

)

AC Amplitude Adjustment (50

W

)

1 The function generator stores 16 calibration constants related to 50

W output. The constants are calculated from the adjustment value entered.

The calibration constants are stored following completion of setup 49 and the calibration procedure may be aborted after that point. No calibration constants are stored if the procedures are aborted at any other setup.

2 Use the DMM to measure the resistance of a 50

W feedthrough load.

Record the measurement for step 3. You can measure the load and cable resistance (recommended procedure) or just the load as shown below.

4

3 Enter the following setup and use the calibrate menu to enter the measured value of the 50

W feedthrough load (and cable). This number will be used to calculate the 50

W output amplitude calibration constants.

SETUP

33

Nominal Input

LOAD Z

50

W

Enter measured value of load.

Once the value of the 50

W load and cable are entered, use the SAME

load and cable for all 50

W tests.

73



W

)

4 Use the DMM to measure the function generator ACrms output voltage for each setup in the table on the next page. These adjustments use the

50

W load and cable measured in step 2 and connected as shown below.

74



W

)

44

46

47

48

49

41

42

43

44

SETUP

34

35

36

37

38

39

40

Nominal Output

FREQUENCY

1 kHz

1 kHz

1 kHz

AMPLITUDE

3.5 Vrms

2.8 Vrms

Adjustment for:



2.23 Vrms 4 dB Output Attenuator

1 kHz

1 kHz

1.77 Vrms

1.41 Vrms



1 kHz

1 kHz

1 kHz

1 kHz

1.12 Vrms

.887 Vrms

.704 Vrms

.559 Vrms





1 kHz

1 kHz

1 kHz

1 kHz

1 kHz

1 kHz

1 kHz

.442 Vrms

.350 Vrms

.281 Vrms

.223 Vrms

.177 Vrms

.141 Vrms

.112 Vrms









6 Perform the AC Amplitude Verification procedures beginning on page 57.

4

75


DC Output Adjustment

DC Output Adjustment

The function generator stores nine calibration constants related to

DC volts output. The constants are calculated from the adjustment value entered. The calibration constants are stored following completion of setup 59. No calibration constants are stored if the procedures are aborted

at any other setup.

1 Use a DMM to measure the function generator dcV output voltage for each setup in the following table. These adjustments use a HIGH Z output termination.

SETUP

50

51

52

53

54

55

56

57

58

59

Nominal Output

DC Volts

- 8.0 Vdc

8.0 Vdc

0.0 Vdc

0.0 Vdc

0.0 Vdc

0.0 Vdc

0.0 Vdc

0.0 Vdc

0.0 Vdc

0.0 Vdc

Adjustment for:

Negative offset gain

Positive offset gain

AM offset

2 dB Pre-attenuator offset.







2 Use the CALIBRATE menu to adjust the displayed output voltage at each setup to match the measured voltage and enter the value.

3 Perform the DC Function Offset Verification procedures on page 57.

76


Duty Cycle Adjustment

Duty Cycle Adjustment

The function generator stores two calibration constants related to squarewave offset and two calibration constants related to squarewave duty cycle. The constants are calculated from the adjustment value entered. The calibration constants are stored following completion of setup 63. No calibration constants are stored if the procedures are aborted

at any other setup.

1 Use a DMM to measure the function generator dcV output voltage for each setup in the following table. These adjustments use a HIGH Z output termination.

For this test, the DMM must be set to a fixed range capable of measuring from +10 V to -10 V. Do not use an auto-ranging function for this test.

4

SETUP

60

61

62

63

Nominal Output

FREQUENCY AMPLITUDE

—

—

10.0 Vdc Positive squarewave offset.

-10.0 Vdc Negative squarewave offset.

300 Hz

300 Hz

0.0 Vdc

5.0 Vdc

50% duty cycle squarewave.

75% duty cycle squarewave

2 Use the CALIBRATE menu to adjust the displayed output voltage at each setup to match the measured voltage and enter the value.

3 Perform the Squarewave Duty Cycle Verification procedures on page 62.

AC Amplitude Flatness Adjustment

The function generator stores eleven calibration constants related to AC

Amplitude Flatness from 1 kHz to 15 MHz. The constants are calculated from the adjustment value entered and one of two calculation constants related to the type of measurement device you are using. The calibration constants are stored following completion of setup 82. No calibration

constants are stored if the procedures are aborted at any other setup.

77


AC Amplitude Flatness Adjustment

This procedure can be performed with one of three types of measurement device; a broadband ACrms voltmeter, a power meter, or a thermal voltage converter. The procedure differs slightly depending upon the type of measurement device used. These adjustments us a 50

W output termination.

1 Use a DMM to measure the ACrms output voltage of the function generator and enter the measurement value for the setup in the table below.

SETUP

64

Nominal Output

FREQUENCY

1 kHz

AMPLITUDE Reference for:

3.0 V rms 1 kHz flatness DAC gain

2 a. If you are using a broadband ACrms voltmeter, proceed to step 3.

b. If you are using a power meter capable of measurements at 1 kHz,

use the power meter to measure the function generator output and enter

the value for the setup in the table below. (If your power meter does not

measure to 1 kHz, see the transfer measurement procedure below.)

SETUP

83

Nominal Output

FREQUENCY

1 kHz

AMPLITUDE Reference for:

3.0 V rms V rms, dBm

Transfer Measurement Procedure

If you are using a power meter not capable of measurement to 1 kHz, you can perform the transfer measurement at a different frequency.

For example, the Agilent E4418A Power Meter with the Agilent 8482A probe and 20 dB attenuator are specified to a low frequency of 100 kHz.

To use this measurement device, perform step 1, then use setup 65 to obtain a 100 kHz output. Measure the output with the power meter and record the measured value. Perform setup 83 and enter the recorded value (not a new measurement). Then, perform step 3 (you will use setup

65 twice). This procedure assumes the output of the function generator is

flat from 1 kHz to 100 kHz.

c. If you are using a Thermal Voltage Converter (TVC), use the TVC to

measure the function generator output and enter the measurement for

the setup in the table below (TVC values entered are in mVdc).

SETUP

84

Nominal Output

FREQUENCY AMPLITUDE

1 kHz 3.0 V rms

Reference for:

Thermal Voltage Converter

78


AC Amplitude Flatness Adjustment

3 For each setup in the table below, use the CALIBRATE command to change the displayed amplitude to match the measured amplitude.

76

77

78

79

72

73

74

75

SETUP

65

66

67

68

69

70

71

80

81

82

Nominal Output

FREQUENCY

100 kHz

AMPLITUDE Adjustment for:

3.0 V rms 100 kHz amplitude flatness

500 kHz

1 MHz

3.0 V rms

3.0 V rms

500 kHz amplitude flatness

1 MHz amplitude flatness

3 MHz

5 MHz

7 MHz

9 MHz

3.0 V rms

3.0 V rms

3.0 V rms

3.0 V rms





10 MHz

10.5 MHz

11 MHz

11.5 MHz

12 MHz

12.5 MHz

13 MHz

13.5 MHz

14 MHz

14.5 MHz

15 MHz

3.0 V rms

3.0 V rms

3.0 V rms

3.0 V rms

3.0 V rms

3.0 V rms

3.0 V rms

3.0 V rms

3.0 V rms

3.0 V rms

3.0 V rms


10.5 MHz amplitude flatness










4 Perform the Amplitude Flatness Verification procedures on page 60.

Shift Menu On/Off

Completion of adjustment procedures. Return the function generator to the normal operating mode.

EXITING

4

79


Output Amplifier Adjustment (Optional)

Output Amplifier Adjustment (Optional)

This adjustment procedure should only be performed following repairs to the Output Amplifier circuitry. The adjustment improves the high frequency performance of the Output Amplifier.

1 Remove the function generator power and cover as described on page 130.

2 Use a DMM to measure the ACrms voltage across J701 as shown below.

Cable Shield is

Circuit Ground

3 Turn on the function generator.

4 Set the function generator for a 1 kHz, 1V rms, sine wave output.

5 Adjust R710 for a minimum reading on the voltmeter. Typical readings are less than 0.005 Vrms.

6 Replace the covers as described on page 130.

80


Error Messages

Error Messages

The following tables are abbreviated lists of function generator’s error messages. They are intended to include errors which are likely to be encountered during the procedures described in this chapter. For a more complete list of error messages and descriptions, see chapter 5 in the

Agilent 33120A User’s Guide.

System Error Messages

Error

-330

-350

501

502

511

512

513

514

521

522

550

Error Message

Self-test Failed

Too many errors

Isolator UART framing error

Isolator UART overrun error

RS-232 framing error

RS-232 overrun error

RS-232 parity error

Command allowed only with RS-232

Input buffer overflow

Output buffer overflow

Command not allowed in Local

4

Self-Test Error Messages

608

625

626

627

604

605

606

607

Error

601

602

603

Error Message

Front panel does not respond

RAM read/write fail

Waveform RAM readback failed

Modulation RAM readback failed

Serial configuration readback failed

Waveform ASIC failed

SYNC signal detection failure

SYNC signal detection failure

I/O Processor not responding

I/O Processor failed self-test

I/O Processor reset; possible low power line voltage

81


Error Messages

Error

760

850

851

852

853

854

855

856

857

858

701

702

703

704

705

706

707

708

709

Calibration Error Messages

Error Message

Cal security disabled by jumper

Cal secured

Invalid secure code

Secure code too long

Cal aborted

Cal value out of range

Cal signal measurement out of range

Flatness cal failed

Cannot calibrate frequency while externally locked (Option 001)

RAM checksum failure

Cal setup invalid

Negative offset gain cal required (CAL:SETup 50)

Flatness DAC gain cal required (CAL:SETup 64)

AM cal 1 required (CAL:SETup 30)


Cal load resistance not specified (CAL:SETup 33)

Square wave positive offset cal required (CAL:SETup 60)

Square wave 50% duty cycle cal required (CAL:SETup 62)


82

5

Theory of

Operation

5

Theory of Operation

This chapter is organized to provide descriptions of the circuitry contained on the schematics shown in chapter 8. A block diagram overview is provided followed by more detailed descriptions of the circuitry contained in the schematics chapter.

Block Diagram Overview . . . . . . . . . . . . . . . . 85

Output Attenuator . . . . . . . . . . . . . . . . . . . 86

Output Amplifier . . . . . . . . . . . . . . . . . . . . 87

AM Modulation . . . . . . . . . . . . . . . . . . . . . 89

Pre-attenuator . . . . . . . . . . . . . . . . . . . . . . 90

Square Wave and Sync . . . . . . . . . . . . . . . . . 90

Filters . . . . . . . . . . . . . . . . . . . . . . . . . . 92

Waveform DAC/Amplitude Leveling/Waveform RAM . . 93

Direct Digital Synthesis (DDS ASIC) . . . . . . . . . 95

System DACs . . . . . . . . . . . . . . . . . . . . . . 96

Floating Logic . . . . . . . . . . . . . . . . . . . . . . 97

Earth-Referenced Logic . . . . . . . . . . . . . . . . . 98

Power Supplies . . . . . . . . . . . . . . . . . . . . . 98

Display and Keyboard . . . . . . . . . . . . . . . . . . 100

The self-test procedures are described in chapter 6.

84

Chapter 5 Theory of Operation

Block Diagram Overview

Block Diagram Overview

This discussion pertains to the block diagram shown on page 129.

The function function generator’s circuitry is divided into two major blocks: the floating section and the earth (ground) reference section.

All signal generation, control, and display functions are contained in the floating section. This section also contains the function generator’s main CPU.

The floating section can be viewed in two pieces; the analog signal conditioning section (System DAC, Filters, Sync, Square wave,

Pre-Attenuator, Output Amp, and Output Attenuator) and the digital logic section (Floating Logic, Digital Waveform Data Synthesis, and

Waveform DAC).

All signal generation, level control, and modulation functions are performed in the floating section. The waveform DAC generates two outputs, normal and inverted, between approximately 800 mVp-p and

1 Vp-p. The DAC outputs are routed through anti-alias low-pass filters to eliminate higher frequency sampling products. The nominal x10 gain of the output amplifier, combined with preattenuator and output attenuator settings, are chosen such that the desired output amplitude is produced.

The ground reference section uses a processor configured as a slave to the main CPU. This processor establishes external I/O communication with the main CPU through a bi-directional, optically isolated, serial communications link. The earth referenced processor controls low-level

GPIB (IEEE-488) and RS-232 interface operation. The ground referenced, rear panel external trigger input uses a dedicated optical isolator to couple a trigger signal to the main CPU in the floating section.

5

Separate power supplies are provided for the floating and ground reference sections. The front panel operates from the floating section with its logic common different from the CPU logic common.

85


Output Attenuator

Output Attenuator

Block 8 on block diagram page 129; Schematic on page 138.

The Output Attenuator provides 0 to 30 dB of signal attenuation between the output amplifier section and the output BNC connector. Output signal levels are controlled by combining coarse amplitude control from the output attenuator section and pre-attenuator section with fine amplitude control from the Waveform DAC AMP_CTL signal.

Four switched output attenuator pads are combined to achieve the desired signal attenuation as shown in the table below. Relays K801 through

K804 either bypass an attenuator pad or select that attenuator. K801 selects a 2 dB attenuator, K802 selects a 4 dB attenuator, K803 selects a 8 dB attenuator, and K804 selects a 16 dB attenuator. Relays are sequenced to provide signal attenuation in 6 dB steps. Intermediate amplitude levels are controlled by selecting 0 dB, 2 dB or 4 dB of signal attenuation through the pre-attenuator solid state switches in combination with reducing the output level of the waveform DAC itself.

The AMP_CTL signal provides smoothly varying control of the Waveform

DAC output level over a 0 dB to -2 dB range. This operation is described further in the Waveform DAC and System DAC discussions.

Output Attenuation

0 dB

6 dB

12 dB

18 dB

24 dB

30 dB

K801 set reset set reset set reset

K802 set reset reset set set reset

K803 set

set reset set reset

reset

K804 set set set reset reset reset

K801 through K804 are latching relays. Their set or reset state is selected by momentarily pulsing the appropriate coil of the relay. Relay coils are pulsed with 5 volts for 15 ms through relay drivers U301 and U302.

The main controller, U102, writes data bytes to ASIC U103 which transmits this data to the relay drivers via the internal 3-wire serial data bus

(SERCLK, SERDAT, and SERSTB) to accomplish the relay state changes.

A 30 MHz filter, composed of L801, C801, and C802, eliminates wideband noise from the function generator output. The output amplifier and output attenuators are protected from damage by clamps CR801 and CR802 and by fuse F801. The function generator is protected from accidental application of voltages <10 volts for short durations.

86


Output Amplifier

Output Amplifier


The output amplifier drives the function generator’s signal output through the output attenuator section. The output amplifier exhibits an approximate 35 MHz bandwidth and 1000 V/ ms slew rate. AC signals originating from the DAC+ and DAC- signal paths are combined at the input of the amplifier. The output amplifier exhibits a nominal x(-10) voltage gain from its -AMP_IN input and a nominal x12 voltage gain from its +AMP_IN input. A dc offset signal, related to the front panel output offset value, is also summed with the ac signal at the input of the amplifier. A simplified block diagram of the output amplifier is shown below.

5

87


Output Amplifier

The block diagram shows four basic stages: dc amplifier, input differential amplifier, gain, and power output. The amplifier’s input differential amplifier stage and gain stage are symmetrical. The +AMP_IN and

-AMP_IN inputs are both amplified through complementary amplifiers whose outputs are summed together at the input of the power output stage. Transistors Q701, Q702, Q704 and Q707 form the complementary input differential amplifiers. Q708 and Q705 are current sources which provide bias to the input differential amplifiers. Q709 and Q710 are emitter follower amplifiers used to couple the respective differential amplifier outputs to the gain stage transistors Q711 and Q715 which provide virtually all of the amplifiers open loop gain (~ x1000).

The power output stage is a wideband, class C buffer amplifier. Emitter followers Q714 and Q716 buffer the gain stage output from loading by the power output emitter follower transistors Q713 and Q718. Idle current bias for these power output transistors is set by the ratios of R732, R726 and transistor matching between Q713, Q714 and their equivalents in the other half of the stage: R734, R727 and Q718, Q716. Transistors Q712 and Q717 are current sources which provide bias to emitter followers

Q714 and Q716 respectively.

The low frequency and dc performance of the amplifier is controlled by

U702. This amplifier is used to sense the dc offset present at the

+AMP_IN and -AMP_IN inputs and servo the output amplifier dc offset to zero volts; to the limit of U702’s own dc offset performance. U702 also provides a means to add a desired dc offset value into the output signal path through the x (-1) gain of the OUT_OFFSET signal.

The output amplifier employs a current feedback technique to set the closed-loop gain. The emitters of Q701 and Q702 are the virtual summing node points in the amplifier. Amplifier closed loop gain is controlled predominately by the following ratios:

2

* ( R740 + R710 ) + R717

( R715 + R716 )

and

2

* ( R740 + R710 ) + R711

( R719 + R720 )

Variable resistor R710 is used to match the gain through the high frequency feedback path (described above) and the dc feedback path summed through resistors R705, R706. The feedback signal current is injected into the amplifier through the emitters of Q701 and Q702 respectively.

88


AM Modulation

AM Modulation

Blocks 3 and 6 on block diagram page 129; Schematics on pages 136 and 133.

Amplitude modulation is performed by analog multiplier U603 combining the AM_IN and +FUNCTION and -FUNCTION signals. Modulation depths from 0% to 120% are set by varying the signal at AM_IN.

When the amplitude modulation function is selected, the output of U603 is switched into the +AMP_IN signal path by K602. At the same time, the -AMP_IN signal path is grounded, cutting the output signal

amplitude in half, to accommodate the more than two times peak signal levels required by >100% modulation depth.

The AM_IN signal is a combination of any external modulation inputs applied to the rear panel BNC connector and the internally generated

AM signals. The function generator can internally synthesize an 8-bit modulation wave shape through DAC U313. Data from any standard or arbitrary wave shape can be used as the modulating wave shape.

Modulating wave shapes are automatically expanded or compressed in length, as required, to meet the specified modulating frequency setting.

Changes in the function generator output will lag changes in the modulating frequency because new modulation data must be computed and downloaded internally for every frequency change.

The AM_GAIN and AM_OFFSET dc signals are used to calibrate and vary the am modulation depth settings. AM_GAIN controls the peak-to-peak output level from U313 in response to modulation depth setting changes.

Likewise, the AM_OFFSET signal varies inversely to the AM_GAIN signal, as the AM depth setting is varied, to produce a constant signal offset in the composite AM_IN modulation signal. The net AM_IN offset is independent of the modulating ac signal component or AM depth setting.

89

5


Pre-attenuator

Pre-attenuator


All signals, except square waves, pass through the preattenuator.

The preattenuator multiplexes eight resistive 2 dB attenuators to provide attenuation from 0 dB to 14 dB in 2 dB steps. The 0 dB, 2 dB, and 4 dB attenuation steps are used for level settings between the 6 dB steps selected in the output attenuator section. Amplitude settings between these 2 dB steps are set by smoothly varying the Waveform DAC output level from 0 dB to -2 dB of its nominal level via the AMP_CTL signal.

Output attenuator 6 dB steps, preattenuator 0 dB, 2 dB, and 4 dB steps, and small variations (0 dB to 2 dB) of the Waveform DAC output level are combined to produce each amplitude setting.

In the preattenuator, U601 and U602 are operated as 8-to-1 multiplexers, each providing selectable 2 dB attenuation steps. Because of the gain imbalance of the output amplifier (x 12 on +AMP_IN and x (-10) on

-AMP_IN), the +signal path U601 has an additional 2 dB attenuation always present (R601 and R602) to equalize the nominal gains in both the plus and minus signal paths.

Square Wave and Sync

Block 6 on block diagram page 129, schematic on page 136.

During square wave outputs, a sine wave signal is generated internally and squared-up by comparator U620. Square wave amplitude control is accomplished by variable gain amplifier Q603 and Q604 and switched into the output signal path through relay K601. A simplified diagram of the square wave generator is shown below.

90


Square Wave and Sync

Transistors Q601 and Q602 buffer the output of the sine wave anti-alias filter to the input of comparator U620. Square wave duty cycles are controlled by the SQ_SYM input on the inverting input of the comparator.

The squarewave outputs of U620 are amplified by variable gain amplifiers Q603 and Q604.

The amplifier gain output level is controlled by the variable current source Q605 and U307D in response to the System DAC dc signal

SW_AMP. Squarewave variable gain amplifier output signal levels are unbalanced by resistors R643 and R644 to correct for the output amplifier + and - gain differences as discussed in the preattenuator section on page 90.

Latching relay K601 connects the square wave into the +FUNCTION and -FUNCTION paths. The relay set or reset state is selected by momentarily pulsing the appropriate coil. Relay coils are pulsed with

5 volts for 15 ms through relay driver U301. The main controller, U102, writes data bytes to ASIC U103 which transmits this data to the relay drivers via the internal 3-wire serial data bus (SERCLK, SERDAT, and SERSTB) to accomplish relay state changes.

Multiplexer U604 selects one of five sources for the SYNC output: off, modulation sync, square wave comparator output, RUN*, or Arbitrary waveform sync. ARB_SYNC is derived from the WA14 line through

U210B. U215B and U210C control the pulse width of the ARB_SYNC

(arbitrary waveform sync) signal. Square wave sync is taken from the inverting output of square wave comparator U620. U620 also generates the MOD_SYNC (modulation sync) through U217. Buffer U621 inverts the sync signal and provides the output current drive to the SYNC output

BNC connector.

5

91


Filters

Filters


The output of the Waveform DAC passes through one of two anti-alias filters. A 17 MHz 9th order elliptical filter is used for the sine wave and square wave output functions. A 10 MHz 7th order Bessel filter is used for filtering all other output functions, including all arbitrary waveshapes.

The diagrams below show the typical frequency response of these filters.

The filters are switched in or out of the signal path by latching relays

K501 and K502. Their set or reset state is selected by momentarily pulsing the appropriate coil of the relay. Relay coils are pulsed with

5 volts for 15 ms through relay drivers U301 and U302. The main controller, U102, writes data bytes to ASIC U103 which transmits this data to the relay drivers via the internal 3-wire serial data bus (SERCLK,

SERDAT, and SERSTB) to accomplish these relay state changes. When

K501 and K502 are set, the 10 MHz Bessel filter is selected.

92


Waveform DAC/Amplitude Leveling/Waveform RAM

Waveform DAC/Amplitude Leveling/Waveform RAM


The Waveform DAC, U407, converts 12-bit digital data from waveform

RAM’s U404 and U405 into positive and negative analog voltages.

A simplified diagram of the Waveform DAC circuitry is shown below.

The preattenuator, filters, and associated circuits in the output signal path provide an approximate 25

W

load for the Waveform DAC. The Waveform

DAC nominally produces a 40 mA differential output current — yielding differential 1 Vac output signals. Wave shape (amplitude) data is loaded into the waveform RAM by the main controller CPU U102. Once loaded, these data are addressed by the DDS ASIC. The rate at which addresses are incremented determines the output waveform frequency. Waveform

RAM output data is latched and shifted to ECL levels by U402 and U403 for input to the waveform digital-to-analog converter (DAC) U407. DDS

ASIC U206, waveform data latches U402 and U403, and the Waveform

DAC U407 are clocked at 40 MHz. The 40 MHz clock is generated by oscillator U413 and ECL level-shifter U401.

5

93


Waveform DAC/Amplitude Leveling/Waveform RAM

The Waveform DAC voltage reference is driven by U410B. This reference controls the magnitude of the nominal 0 to -40 mA DAC output current.

The reference level is varied to produce 0 to -2 dB fine amplitude level control via dc signal AMP_CTL and

2 dB of dynamic amplitude flatness correction for static and swept frequency operation via flatness correction dac U409. These reference voltage adjustments are summed together in amplifier U410B. Amplitude flatness correction data are stored in calibration memory during calibration. These data are used to produce a modulation program with corresponding 8-bit amplitude correction data values which are gated to latch U412 during operation. These data provide real-time correction of the output amplitude level as frequency changes are made. Amplifier U408 and Q401 use the waveform DAC reference voltage to center the waveform DAC output signal near 0 volts.

U404 and U405 are the high-speed waveform RAM. Together, U404 and

U405 form a 16383 x 12-bit RAM. Each RAM stores and outputs 6 bits of the waveform DAC 12-bit WD data bus. RAM U404 drives the least significant 4 bits and U405 drive the most significant 8 bits of the WD data bus. Note that DAC U407 calls D1 the most-significant bit (MSB) and D12 it’s least-significant bit (LSB). Waveform RAM addresses are controlled by the DDS ASIC’s WA (waveform address) bus.

94


Direct Digital Synthesis (DDS ASIC)

Direct Digital Synthesis (DDS ASIC)


The DDS ASIC, U206, controls the WA (waveform address) and MA

(modulation address) busses. The waveform address is used by the waveform RAMs U404 and U405. The modulation data bus is used by the modulation RAM U205.

The DDS ASIC is comprised of several internal registers and addressing state machines. Instructions are written to the DDS ASIC by the main CPU via memory mapped control registers U108 and U202. When loading data into Waveform RAM or Modulation RAM, addresses on the WA and MA busses are incremented by ASIC U206. ASIC addresses are incremented by each rising edge of the TRIG line while writing data into these RAM.

The state of the HOST_RQ* line controls whether the main CPU or the modulation RAM U205 is sourcing instructions to the DDS ASIC internal state machines. The Modulation RAM is loaded with frequency values and amplitude flatness correction values or AM modulation data for latch

U309 and AM dac U313. Data multiplexer U217 and flip-flop U215 are used to preselect and synchronize the modulation sync source available to the SYNC output terminal multiplexer U604.

The external trigger input OGEXT is optically isolated by U213 and applied to an input of trigger source multiplexer U214. The external trigger input is used for triggering the start of a frequency sweep or burst output and for externally gating the output signal on and off asynchronously. U214 selects one of seven trigger sources for use by

U206 for initiating its internal program.

5

95


System DACs

System DACs


All output amplitudes are derived from the internal voltage reference of

System DAC U303. The system dac track/hold amplifier outputs are used to provide controllable bias voltages to various analog circuits including

AM modulation depth, square wave amplitude, square wave duty cycle, output dc offset, and output amplitude level. The System DAC is programmed and responds to the main controller via the internal 3-wire serial data bus SERCLK, SERRBK, and SERSTB. The System DAC is multiplexed to 7 track/hold amplifiers through U304. Each track/ hold amplifier is refreshed approximately every 3 ms to maintain its output setting. Changes to track/hold amplifier outputs are accomplished by dwelling on that position for an extended period.

96


Floating Logic

Floating Logic


The floating logic controls the operation of the entire function function generator. All output functions and bus command interpretation is performed by the main CPU, U102. The front panel and earth referenced logic operate as slaves to U102. The main CPU portion of the floating logic section is clocked from a 12 MHz ceramic resonator, Y101. Non-volatile

EEPROM U106 stores arbitrary waveform data, calibration constants, calibration secure code, calibration count, and last instrument state.

The main CPU, U102, is a 16-bit micro controller. The 16-bit A (address) bus and 8-bit AD (address/data) bus are used to provide digital communication with the 256k byte program ROM U104, 32k byte RAM

U105, 128k byte non-volatile EEPROM U106, 32k byte high speed

Modulation RAM U205, 16k x 12-bit high speed waveform RAM U404 and U405 and DDS ASIC U206.

Gate array U103 provides CPU address latching and memory mapping functions. There are four internal registers in U103: a configuration register, an 8-bit counter register, a serial transmit/receive register, and an internal status register. RAM chip select signal RAMCE* and CPU port bits RAMA13 and RAMA14 are used to access 4 - 8k byte banks of program data RAM. Similarly, 4 banks of 56k non-volatile EEPROM and

2 banks of 56k non-volatile RAM are gated from CPU port bits PRG16,

PRG17, and WAVA16 and U103 signal ROMCE*. Addresses on the CPU address bus are valid when the ALE line is high. Memory mapping of control of registers U107 and U202, DDS ASIC U206, data transceivers

U201, U203, U204, and write enables for RAM U404 and U405 and U205 are controlled by data selector U108.

5

The U103 serial register controls the front panel, relay drivers U301 and

U302, and System DAC U303 through a serial data bus. Front panel signals are FPDI, FPSK*, and FPDO. Interrupts from the front panel are detected by U103 and signaled to U102 by CHINT. The FPINT line from

U102 signals the front panel that U103 has data to send. The internal

3-bit serial data bus (U102) uses SERCK, SERDAT, and SERSTB to send data to various registers. SERRBK (serial read back) is used by self test to verify operation of U103, relay drivers U301, U302, and System DAC shift register U305.

97


Earth-Referenced Logic

The main CPU, U102, communicates with the earth referenced logic through an optically isolated asynchronous serial data link. U101 isolates the incoming data (OG_RXD*) from the earth referenced logic. Similarly,

U901 isolates the data from U102 (OG_TXD) to the earth reference logic.

Data is sent in an 11-bit frame at a rate of 187.5 k bits/second. When the

RS-232 interface is selected, data is sent across the serial link at 93.75 k bits/second. The 11-bit internal data frame is configured for one start bit, eight data bits, one control bit, and one stop bit.

Earth-Referenced Logic


The earth referenced section provides all rear panel input/output capability. Microprocessor U903 handles GPIB (IEEE-488) control through bus interface chip U904 and bus receiver/driver chips U907 and

U908. The RS-232 interface is also controlled through U903. RS-232 transceiver chip U906 provides the required level shifting to approximate

9 volt logic levels through on-chip charge-pump power supplies using capacitors C904 and C906. Communication between the earth referenced logic interface circuits and the floating logic is accomplished through an optically-isolated bi-directional serial interface. Isolator U101 couples data from U903 to microprocessor U102. Isolator U901 couples data from

U102 to microprocessor U903.

Power Supplies


The power supply section, is divided into two isolated blocks similar to the floating logic and earth referenced logic sections discussed earlier.

The floating supply outputs are

18 Vdc, +5 Vdc, -5.2 Vdc (VEE), and a

6 Vrms center tapped filament supply for the vacuum fluorescent display.

All earth referenced logic is powered from a single +5 Vdc supply.

Power-on reset signals are provided by both the floating and earth referenced power supplies. In addition, the floating section +5 Vdc supply incorporates a power failure detection circuit which provides a priority interrupt signal to the main CPU (U102).

98


Power Supplies

The ac mains are connected by a fused power entry module, P1.

This module incorporates the functions of mains connection, on/off switching, fusing, and line voltage selection (100/120/220 (230)/240).

The line voltage selection function of module P1 selects which primary winding of power transformer T1 is energized. The transformer secondary windings are connected to the main pc board through connector J1001.

The floating +5 Vdc and -5.2 Vdc supplies are produced by a bridge rectifier formed by diodes CR1006 through CR1009, filter capacitors

C1005 and C1009, and voltage regulators U1003 and U1004. U1005 and

CR1011 form a clamp circuit to provide over voltage protection in the event of a mains or transformer failure. The PFAIL and PONRST* signals are derived from the floating +5 Vdc supply. PFAIL is asserted when the raw 5 Vdc supply drops below 6.4 V signaling an unstable power supply condition to the main CPU (U102). Current instrument state information is copied to non-volatile RAM, U106 for future recall if needed. The PONRST* signal holds the main CPU and other logic in a reset state until after the +5 Vdc logic power supply is fully operational.

This signal is generally active only following application of line power to the instrument.

The floating

18 volt supplies are produced by bridge rectifier CR1001, filter capacitors C1001 and C1003, and regulators U1001 and U1002.

These supplies are used to power all analog circuits in the function generator.

In addition, the vacuum fluorescent display is driven from the

18 volt supplies. A separate winding of T1 provides a center tapped 6 Vrms filament supply for the display. Bias circuit CR1010, R1009, and C1011 generate the required cathode dc bias for the display filament supply.

The 5 volt earth referenced supply is produced by rectifier CR1051,

C1053, and regulator U1051. This supply is earth referenced through the screw used to mount the PC board to the instrument chassis.

The GPIB (IEEE-488) and RS-232 computer interfaces and the rearpanel EXT Trigger circuits are powered from this supply. A controlled power-on reset signal for processor U903 is generated by U1052.

5

99


Display and Keyboard

Display and Keyboard


The front panel circuits consist of vacuum fluorescent display control, display high voltage drivers, and keyboard scanning. Communication between the front panel and floating logic circuits is accomplished through a 4-wire bi-directional serial interface. The main CPU, U102, can cause a hardware reset to processor U1101 by signal IGFPRES.

The front panel logic operates from -13 volts (logic 1) and -18 volts

(logic 0). The four serial communication signals are level shifted by comparator U1301 from the floating logic 0 V to 5 V levels to the -18 V to -13 V levels present on the front panel assembly. The front panel logic high supply (-13 volts) is produced from the -18 volt supply by voltage regulator U1102.

Display anode and grid voltages are +18 volts for an on segment and

-18 volts for an off segment. The -12 V cathode bias for the display is provided by the main pc board’s filament winding center tap bias circuit

CR1010, R1009, and C1011 shown on the power supply schematic

(see page 140).

Keyboard scanning is accomplished through a conventional scanned row-column key matrix. Keys are scanned by outputting data at microprocessor U1101 port pins P0.0 through P0.4 to poll each key column for a key press. Column read-back data are read by the microprocessor at port pins P1.0 through P1.3 for decoding and communication to the floating logic circuits. Rotary knob quadrature inputs are read directly by the microprocessor port pins P1.6 and P1.7.

100

6

Service

6

Service

This chapter discusses the procedures involved for returning a failed function generator to Agilent for service or repair. Subjects covered include the following:

Operating Checklist . . . . . . . . . . . . . . . . . . . 103

Types of Service Available . . . . . . . . . . . . . . . 104

Repackaging for Shipment . . . . . . . . . . . . . . . 105

Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . 105

Electrostatic Discharge (ESD) Precautions . . . . . . 106

Surface Mount Repair . . . . . . . . . . . . . . . . . . 106

To Replace the Power-Line Fuse . . . . . . . . . . . . 107

To Replace the Output Protection Fuse (F801) . . . . 107

Troubleshooting Hints . . . . . . . . . . . . . . . . . 108

Self-Test Procedures . . . . . . . . . . . . . . . . . . 110

102

Chapter 6 Service

Operating Checklist

Operating Checklist

Before returning your function generator to Agilent for service or repair, check the following items:

Is the function generator inoperative?

Verify that the ac power cord is connected to the function generator.

Verify that the front-panel Power switch is depressed.

Verify that the power-line fuse is good (see page 22).

The function generator is shipped from the factory with a

500 mAT fuse installed. This is the correct fuse for all line voltages.

Verify the power-line voltage setting.

See “To prepare the function generator for use” on page 21.

Does the function generator fail self-test?

Verify that the correct power-line voltage is selected.


Is the function generator’s output inoperative?

Turn off the function generator and remove the power cord.

Using an ohmmeter, measure the resistance between the output

BNC center conductor and case. If the ohmmeter measures >100

W, the internal output protection fuse, F801, may be open.

6

103

Chapter 6 Service

Types of Service Available

Types of Service Available

If your function generator fails during the warranty period (within three years of original purchase), Agilent will replace or repair it free of charge.

After your warranty expires, Agilent will repair or replace it at a competitive price. The standard repair process is “whole unit exchange”.

The replacement units are fully refurbished and are shipped with new calibration certificates.

Standard Repair Service (worldwide)

Contact your nearest Agilent Technologies Service Center. They will arrange to have your function generator repaired or replaced.

Agilent Express Unit Exchange (U.S.A. only)

You will receive a refurbished, calibrated replacement Agilent 33120A in

1 to 4 days.

1 Call 1-877-447-7278 and ask for “Agilent Express”.

You will be asked for your serial number, shipping address, and a credit card number to guarantee the return of your failed unit.

If you do not return your failed unit within 15 business days, your credit card will be billed for the cost of a new 33120A.

2 Agilent will immediately send a replacement 33120A directly to you.

The replacement unit will come with instructions for returning your failed unit. Please retain the shipping carton and packing materials to return the failed unit to Agilent. If you have questions regarding these instructions, please call 1-877-447-7278.

The replacement unit will have a different serial number than your failed unit. If you need to track your original serial number, a blank label will be shipped with the replacement unit to record your original serial number.

104

Chapter 6 Service

Repackaging for Shipment

Repackaging for Shipment

If the unit is to be shipped to Agilent for service or repair, be sure to:

Attach a tag to the unit identifying the owner and indicating the required service or repair. Include the instrument model number and your full serial number.

Place the unit in its original container with appropriate packaging material.

Secure the container with strong tape or metal bands.

If the original shipping container is not available, place your unit in a container which will ensure at least 4 inches of compressible packaging material around all sides for the instrument. Use static-free packaging materials to avoid additional damage to your unit.

Agilent suggests that you always insure shipments.

Cleaning

Clean the outside of the instrument with a soft, lint-free, slightly dampened cloth. Do not use detergent. Disassembly is not required or recommended for cleaning.

6

105

Chapter 6 Service

Electrostatic Discharge (ESD) Precautions

W A R N I N G

Electrostatic Discharge (ESD) Precautions

Almost all electrical components can be damaged by electrostatic discharge (

ESD

) during handling. Component damage can occur at electrostatic discharge voltages as low as 50 volts.

The following guidelines will help prevent

ESD

damage when servicing the function generator or any electronic device.

Disassemble instruments only in a static-free work area.

Use a conductive work area to dissipate static charge.

Use a conductive wrist strap to dissipate static charge accumulation.

Minimize handling.

Keep replacement parts in original static-free packaging.

Remove all plastic, styrofoam, vinyl, paper, and other static-generating materials from the immediate work area.

Use only anti-static solder suckers.


To avoid electrical shock and personal injury, make sure to disconnect the power cord from the function generator before removing the covers.

Surface Mount Repair

Surface mount components should only be removed using soldering irons or desoldering stations expressly designed for surface mount components.

Use of conventional solder removal equipment will almost always result in permanent damage to the printed circuit board and will void your Agilent factory warranty.

106

Chapter 6 Service

To Replace the Power-Line Fuse

To Replace the Power-Line Fuse

The power-line fuse is located within the function generator’s fuse-holder assembly on the rear panel (see page 22). The function generator is shipped from the factory with a 500 mAT slow-blow fuse installed (part number

2110-0458). This is the correct fuse for all line voltages.

To Replace the Output Protection Fuse (F801)

The Output Protection Fuse is located inside the function generator.

This fuse is a thru-hole soldered 500 mA part (part number 2110-0716).

The fuse is located near the output connector (J801) on the main PC board.

You will need to disassemble the function generator to replace this fuse

(use a TORX T-15 driver to remove the screws located on the rear panel).

The disassembly procedure is shown on page 130.

107

6

Chapter 6 Service

Troubleshooting Hints

Troubleshooting Hints

This section provides a brief checklist of common failures. Before troubleshooting or repairing the function generator, make sure the failure is in the instrument rather than any external connections. Also make sure that the instrument is accurately calibrated. The function generator’s circuits allow troubleshooting and repair with basic equipment such as a

6

1

2

-digit multimeter and a 100 MHz oscilloscope.

Unit is Inoperative

Verify that the ac power cord is connected to the function generator.

Verify that the front-panel Power switch is depressed.

Verify that the power-line fuse is good (see page 22).

The function generator is shipped from the factory with a

500 mAT fuse installed. This is the correct fuse for all line voltages.

Verify the power-line voltage setting.


Unit Reports Error 760

This error may be produced if you accidentally turn off power the unit during a calibration or while changing a non-volatile state of the instrument. Recalibration or resetting the state should clear the error.

If the error persists, a hardware failure may have occurred.

Unit Fails Self-Test

Verify that the correct power-line voltage setting is selected. Also, ensure that all terminal connections (both front panel and rear terminals) are removed while the self-test is performed. Failure of the System DAC U03 will cause many self-test failures.

108

W A R N I N G

Chapter 6 Service

Troubleshooting Hints

Power Supply Problems


The procedures in this section require that you connect the power cord to the instrument with the covers removed. To avoid electrical shock and personal injury, be careful not to touch the power-line connections.

Check that the input to the supply voltage regulator is at least

1 volt greater than its output.

Circuit failures can cause heavy supply loads which may pull down the regulator output voltage.

Check the main supply voltages as tabulated below.

Power Supply

+5 Ground Ref.

+5 Floating

-5.2 Floating

+18 Floating

-18 Floating

+5REF Floating

Minimum

4.75V

4.75V

-5.46V

17.0V

-19.1V

4.75V

Maximum

5.25V

5.25V

-4.94V

19.1V

-17.0V

5.25V

Some circuits produce their own local power supplies derived from the main supplies. Be sure to check that these local supplies are active. In particular, the output amplifier and front panel sections have local supplies. Always check that the power supplies are free of ac oscillations using an oscilloscope.

6

109

602

603

604

601

Chapter 6 Service

Self-Test Procedures

Self-Test Procedures

Power-On Self-Test

Each time the function generator is powered on, a small set of self-tests are performed. These tests check that the minimum set of logic and measurement hardware are functioning properly. The power-on self-test performs checks 601, 625, and 626.

Complete Self-Test

Hold the shift key while turning on the power to perform a complete self-test. The tests are performed in the order shown below.

Performing Individual Tests

You can perform individual self-tests through the SYStem menu and

TEST command. The parameters allowed are ALL, 603, 604, 605, 606,

607, and 608. All numbered tests are looped to give a continuous pass/fail indication when started from the menu (they will repeat the waveform or sync signal until interrupted).

CPU U102

attempts to establish serial communications with the front panel processor

U1101

.

During this test,

U1101

turns on all display segments. Communication must function in both directions for this test to pass. If this error is detected during power-up self-test, the function generator will beep twice.

This error is only readable from the remote interface.

RAM read/write failed This test writes and reads a 55

H

and AA

H checker board pattern to each address of ram

U103

. Any incorrect readback will cause a test failure.

Waveform RAM readback failed This test writes and reads a A55

H and 5AA

H

checker board pattern (12-bit) to each address of waveform ram

U404 and U405

. The test writes and reads the pattern twice, at alternating addresses. Any incorrect readback will cause a test failure.

Modulation RAM readback failed This test writes and reads a 5A

H and A5

H

checker board pattern (8-bit) to each address of Modulation ram

U205

. The test writes and reads the pattern twice, at alternating addresses. Any incorrect readback will cause a test failure.

110

605

606

607

608

625

626

701

Chapter 6 Service

Self-Test Procedures

Serial configuration readback failed This test re-sends the last 3 byte serial configuration data to all the serial path (SERDAT, SERBCK,

SERCLK). The data is then clocked back into U103 and compared against the original 3 bytes sent. A failure occurs if the data do not match.

This tests checks the serial data path through U301, U302, and U305.

This tests does not check the serial path to the system DAC U303.

Waveform ASIC failed This test is the first part of test 607 (below).

This test sets up a burst modulation program of a special waveform

(a four period ramp wave) where the data at each waveform address is the same as the last 12 bits of its address. The burst modulation waveform is run for 1 cycle plus 1 address and the waveform data is read back and compared. A correct result infers that the modulation program ran correctly and halted at the correct address. This checks the ability of

U205 and U206 to correctly run a burst modulation program. This test and test 604 give a high confidence in the modulation circuitry. This test will fail if a trigger signal is present on the rear panel Ext Trig BNC input.

SYNC signal detection failure, Bessel filter path This test runs the special waveform described in test 606 and counts transitions of the

SYNC line. The test should provide 8 transitions of the SYNC signal.

The test also checks the 7th Order Bessel filter path and U620 and U604.

An incorrect number of transitions will generate an error. This test will fail if a trigger signal is present on the rear panel Ext Trig BNC input.

SYNC signal detection failure, Elliptical filter path This test runs a special waveform and counts transitions of the SYNC line. The test should provide 2 transitions of the SYNC line. The test checks the 9th

Order Elliptical filter path. An incorrect number of transitions will generate an error. This test will fail if a trigger signal is present on the rear panel Ext Trig BNC input.

I/O processor does not respond This test checks that communications can be established between

U102

and

U903

through the optically isolated

(

U101

and

U901

) serial data link. Failure to establish communication in either direction will generate an error. If this condition is detected at power-on self-test, the function generator will beep and the error annunciator will be on.

6

I/O processor failed self-test This test causes the earth referenced processor

U903

to execute an internal, ram test. Failure will generate an error.

Checks that the calibration security disable jumper is removed. If the jumper is shorted at power on, all non-volatile RAM is reset to initial factory values.

111

112

7

Replaceable Parts

7

Replaceable Parts

This chapter contains information to help you order replacement parts for your 33120A Function Generator. The parts lists are divided into the following groups:

33120-66521 Main PC Assembly (A1)

33120-66502 Front-Panel Display and Keyboard PC Assembly (A2)

33120A Mainframe

Manufacturer’s List

Parts are listed in alphanumeric order according to their schematic reference designators. The parts lists include a brief description of the part with applicable Agilent part number and manufacturer part number.

To Order Replaceable Parts

You can order replaceable parts from Agilent using the Agilent part number or directly from the manufacturer using the manufacturer’s part number. Note that not all parts listed in this chapter are available as field-replaceable parts. To order replaceable parts from Agilent, do the following:

1 Contact your nearest Agilent Sales Office or Agilent Service Center.

2 Identify the parts by the Agilent part number shown in the replaceable

parts list. Note that not all parts are directly available from Agilent;

you may have to order certain parts from the specified manufacturer.

3 Provide the instrument model number and serial number.

114

Chapter 7 Replaceable Parts

33120-66521 – Main PC Assembly

33120-66521 – Main PC Assembly

C413-C422

C423

C424

C425

C426-C427

C428

C429-C432

C503-C504

C505-C506

C507-C508

C509-C510

C521-C522

C531-C532

C533-C534

Designator

C101-C102

C103-C105

C107

C108

C109-C110

C111-C113

C114-C117

C201-C202

C203

C204

C205

C206-C207

C208-C210

C211-C213

C301-C306

C308-C309

C310-C312

C313-C318

C319

C320

C401-C402

C404

C405

C406

C407

C408

C409

C410

C411

C412

0160-6497

0160-5959

0160-5947

0160-6497

0160-6736

0160-5967

0160-6497

0160-7405

0160-5953

0160-5964

0160-5958

0160-5954

0160-5955

0160-5976

Number Qty Part Description

0160-6497

0160-5945

0160-5945

0160-6497

0160-5945

0160-6497

0160-5945

0160-6497

0160-5945

0160-6497

0160-5945

0160-6497

0160-5945

0160-6497

0160-6497

0160-6497

0160-5945

0160-6497

0160-5945

0160-6497

0160-6497

0160-5967

0160-5962

0160-5967

0160-5962

0160-5967

0160-6497

0160-5945

0160-6497

0160-5945

78 CAP-FXD 0.1 uF 25 V

26 CAP-FXD 0.01 uF 50 V

CAP-FXD 0.01 uF 50 V

CAP-FXD 0.1 uF 25 V


CAP-FXD 0.1 uF 25 V


6

2

CAP-FXD 0.1 uF 25 V


CAP-FXD 0.1 uF 25 V


CAP-FXD 0.1 uF 25 V


CAP-FXD 0.1 uF 25 V

CAP-FXD 0.1 uF 25 V

CAP-FXD 0.1 uF 25 V


CAP-FXD 0.1 uF 25 V


CAP-FXD 0.1 uF 25 V

CAP-FXD 0.1 uF 25 V

CAP-FXD 100 pF 50 V

CAP-FXD 15 pF 50 V

CAP-FXD 100 pF 50 V

CAP-FXD 15 pF 50 V

CAP-FXD 100 pF 50 V

CAP-FXD 0.1 uF 25 V


CAP-FXD 0.1 uF 25 V


1

4

2

2

5

3

2

3

4

2

CAP-FXD 0.1 uF 25 V

CAP-FXD 33 pF 50 V

CAP-FXD 1000 pF 50 V

CAP-FXD 0.1 uF 25 V

CAP-FXD 0.01uF +-10% 50 V CER X7R

CAP-FXD 100 pF 50 V

CAP-FXD 0.1 uF 25 V

CAP-FXD 560 pF +-10% 50 V CER X7R

CAP-FXD 270 pF 50 V

CAP-FXD 180 pF 50 V

CAP-FXD 39 pF 50 V

CAP 220 pF 5% 50V

CAP-FXD 68 pF 50 V

CAP-FXD 12 pF 50 V

Mfr.

Part

Code Number

04222 12065C104KAT A

04222 08055C103KAT A

04222 08055C103KAT A

04222 12065C104KAT A

04222 08055C103KAT A

04222 12065C104KAT A

04222 08055C103KAT A

04222 12065C104KAT A

04222 08055C103KAT A

04222 12065C104KAT A

04222 08055C103KAT A

04222 12065C104KAT A

04222 08055C103KAT A

04222 12065C104KAT A

04222 12065C104KAT A

04222 12065C104KAT A

04222 08055C103KAT A

04222 12065C104KAT A

04222 08055C103KAT A

04222 12065C104KAT A

04222 12065C104KAT A

04222 08051A101JAT A

04222 08051A150JAT A

04222 08051A101JAT A

04222 08051A150JAT A

04222 08051A101JAT A

04222 12065C104KAT A

04222 08055C103KAT A

04222 12065C104KAT A

04222 08055C103KAT A

04222 12065C104KAT A

04222 08051A330JAT A

04222 08055C102KAT A

04222 12065C104KAT A

51406 GRM426X7R103K50

04222 08051A101JAT A

04222 12065C104KAT A

28480 0160-7405

02444 08051A271JAT A

04222 08051A181JATRA

04222 08051A390JAT A

04222 08051A221JAT A

04222 08051A680JATRA

04222 08051A120JAT A

7

115



Designator

C535-C536

C539-C540

C541-C542

C543-C544

C545-C546

C547-C548

C551-C552

C553-C554

C601-C607

C608

C623

C624

C630

C631

C632-C633

C702

C703-C704

C705

C706-C707

C709

C710

C711

C712

C713

C714-C719

C720

C802

C901

C902

C903-C906

C908

C909-C911

C913

C1001

C1002

C1003

C1004

0160-5945

0160-6497

0160-6497

0180-4313

0180-3751

0180-4313

0180-3751

C1005

C1006

0180-4086

0180-3751

C1007-C1008 0160-6497

C1009 0180-4589

C1010-C1011 0180-4116

C1013

C1014

C1015-1016

0160-6497

0180-4116

0160-6497

0180-3975

0160-5945

0160-5945

0160-5955

0160-5957

0160-5953

0160-5975

0160-5942

0180-3975

0160-5975

0180-3975

0180-3859

0180-3975

0180-3859

0160-6497

0160-5942

0160-5964

0160-6497

0160-5955

0160-6497


0160-5952

0160-7721

0160-5965

0160-5967

0160-7733

0160-5953

0160-5961

0160-5965

0160-6497

0160-5954

2

2

2

2

2

CAP-FXD 330 pF 50 V

CAP-FXD 82 pF +-1% 50 V CER C0G

CAP-FXD 150pF +-5% 50 V CER C0G

CAP-FXD 100 pF 5%

CAP-FXD 100 pF +-1% 50 V CER C0G

CAP-FXD 270 pF 50 V

CAP-FXD 22 pF 50 V

CHIP CAPACITOR

CAP-FXD 0.1 uF 25 V

CAP 220 pF 5% 50V

5

2

3

2

2

CAP-FXD 2.2 uF 20 V TA



CAP-FXD 68 pF 50 V

CAP-FXD 47 pF

CAP-FXD 270 pF 50 V

CAP-FXD 10 pF 50 V

CAP-FXD 1 pF 50 V


CAP-FXD 10 pF 50 V


CAP-FXD 1000 uF+-20% 35 VDC


CAP-FXD 1000 uF+-20% 35 VDC

CAP-FXD 0.1 uF 25 V

CAP-FXD 1 pF 50 V

CAP-FXD 180 pF 50 V

CAP-FXD 0.1 uF 25 V

CAP-FXD 68 pF 50 V

CAP-FXD 0.1 uF 25 V

2

3

2

1

4


CAP-FXD 0.1 uF 25 V

CAP-FXD 0.1 uF 25 V

CAP 2200 uF 50V

CAP-FXD 1 uF 35 V TA

CAP-FXD 2200 uF 50V


CAP-FXD .01 F+-20% 25 VDC AL


CAP-FXD 0.1 uF 25 V

CAP-FXD +-20% 16 V AL-ELCTLT


CAP-FXD 0.1 uF 25 V


CAP-FXD 0.1 uF 25 V

Mfr.

Part

Code Number

04222 08055A331JAT A

04222 08055A820FATMA

04222 08051A151JAT A

04222 08051A101JAT A

04222 08055A101FAT_A

04222 08051A271JAT A

04222 08051A220JAT A

04222 08051A151JAT A

04222 12065C104KAT A

04222 08051A221JAT A

04222 TAJB225M020

04222 08055C103KAT A

04222 08055C103KAT A

04222 08051A680JATRA

04222 08051A470JAT A

02444 08051A271JAT A

04222 08051A100JAT A

04222 08051A1R0CAT A

04222 TAJB225M020

04222 08051A100JAT A

04222 TAJB225M020

S4217 SME35VB102M12.5X25LL

04222 TAJB225M020

S4217

SME35VB102M12.5X25LL

04222 12065C104KAT A

04222 08051A1R0CAT A

04222 08051A181JATRA

04222 12065C104KAT A

04222 08051A680JATRA

04222 12065C104KAT A

04222 08055C103KAT A

04222 12065C104KAT A

04222 12065C104KAT A

S4217

KME50VB222M18X35LL

04222 TAJB105M035

S4217 KME50VB222M18X35LL

04222 TAJB105M035

S4217

SME25VN103M22X45LL

04222 TAJB105M035

04222 12065C104KAT A

S4217 SMH16VN153M22X35LL

04222 TAJD226M020

04222 12065C104KAT A

04222 TAJD226M020

04222 12065C104KAT A

116



Designator

C1017-1019

C1020-1021

C1051-C1052

C1053

C1054

C1055

Number Qty

0160-5947

0160-5945

0160-6497

0180-4086

0180-4116

0160-6497

CR301 1906-0291

CR302-CR303 1902-1541

CR401

CR601

1902-1541

1906-0291

CR701-CR702 1902-1512

CR703-CR704 1902-1610

CR709-CR710 1902-1610

CR801-CR802 1901-1386

CR803-CR804 1902-1807

CR901-CR904 1906-0291

8

3

2

4

2

2

8

Part Description



CAP-FXD 0.1 uF 25 V

CAP-FXD .01 F+-20% 25 VDC


CAP-FXD 0.1 uF 25 V

DIODE- 70V 100MA

DIODE-ZNR 3.3V 5% TO-236 (SOT-23)


DIODE- 70V 100MA

DIODE-ZNR 7.5V 5% PD=.155W TC=+5.3MV

DIODE-ZNR SMB 3.3V 5% 1W

DIODE-ZNR SMB 3.3V 5% 1W

DIODE SI PN SOT23 100V 750MA

DIODE-ZNR SMB 24V 42MA 1.0W 5%

DIODE- 70V 100MA

J101

J102

J301

J401

J601

J701

J801

J901

J902

J903

J1001

J1002

J1051

CR1001 1906-0407

CR1002-1003 1906-0291

CR1004-1005 1902-1609

CR1006-1009 1901-1607

CR1010 1902-1609

CR1051

CR1052

1906-0407

1901-1346

E901

F801

FB401-FB402

FB601

FB701-FB702

FB1001-1002

HS1001-1004

HSQ713

HSQ718

9164-0173

2110-0716

9170-1421

9170-1421

9170-1421

9170-1421

1205-0880

1205-0213

1205-0213

1252-4484

1252-4683

1250-1884

1250-0257

1251-2969

1251-5066

1251-2969

1252-2266

1252-2161

1250-1884

1252-5136

1251-5066

1252-4487

2

3

4

1

1

1

7

4

2

1

1

2

1

2

2

1

1

1

1

Mfr.

Part

Code Number

04222 08055C102KAT A

04222 08055C103KAT A

04222 12065C104KAT A

S4217 SME25VN103M22X45LL

04222 TAJD226M020

04222 12065C104KAT A

04713 MBAV99

04713 BZX84C3V3

04713 BZX84C3V3

04713 MBAV99

04713 BZX84C7V5

04713 1SMB5913B

04713 1SMB5913B

28480 1901-1386

04713 1SMB5934BT3

04713 MBAV99

DIODE-FW BRDG 400V 1A

DIODE- 70V 100MA

DIODE-ZNR 6.2V 5% PD=1.5W IR=5UA

71744 DF04S

04713 MBAV99

04713 1SMB5920B

DIODE-PWR RECT SMC 400V 2.5A 2.5US S3G 71744 S3G

DIODE-ZNR 6.2V 5% PD=1.5W IR=5UA 04713 1SMB5920B

DIODE-FW BRDG 400V 1A 71744 DF04S

DIODE,TVS,D0214AB,43V,1500WP,SMCJ43CA 71744 SMCJ43CA

BEEPER 51406 PKM24-4AO-1

FUSE-SUBMINIATURE .50A 125V NTD AX UL 75915 R251.500T1

BEAD, SHIELDING (CHOKE)



28480 9170-1421

28480 9170-1421

28480 9170-1421


HEATSINK-TO-220

HEAT SINK SGL TO-5/TO-39-CS

HEAT SINK SGL TO-5/TO-39-CS

28480 9170-1421

13103 7021B-TC10-MT

13103 2228B

13103 2228B

CONN-POST TYPE 2.0-PIN-SPCG 12-CONT

CONN-FRCC VERT MALE 10PIN SMC

CONNECTOR-RF BNC RCPT, 50-OHM

CONNECTOR-RF SMB PLUG 50-OHM

CONN PHONE VERT

CONN DIS VERT MALE 2PIN FP

CONN PHONE VERT

CONN-RECT D-SUBMIN 9-CKT 9-CONT

CONN-RECT MICRORBN 24-CKT 24-CONT

CONN-RF BNC RCPT PC-W-STDFS 50-OHM

CONN-DIS FRIC LOCK VERT MALE 9PIN

CONN DIS VERT MALE 2 PIN FP

CONN-POST TYPE .156-PIN-SPCG 3-CONT

27264 52007-1210

76381 N3662-6202

00779 227161-6

00779 413990-3

27264 15-24-0503

27264 22-04-1021

27264 15-24-0503

00779 748959-1

00779 554923-2

00779 227161-6

27264 26-64-4090

27264 22-04-1021

27264 26-64-4030

7

117



Designator

JM1001-1004

JM1051

K501-K502

K601-K602

K801-K804

L501-L502

L503-L504

L505-L506

L521-L522

L531-L532

L533-L534

L535-L536

L537-L538

L601-L602

L801

Q401

Q601-Q602

Q603-Q604

Q605

Q701

Q702

Q704

Q705

Q707

Q708

Q709

Q710

Q711-Q712

Q713

Q714

Q715-Q717

Q718

R101-R104

R106-R109

R110

R111-R112

R114-R116

R117

R118-R119

R120-R121

R201

R203

R205

1854-1037

1854-1037

1853-0516

1853-0567

1854-1148

1853-0516

1854-1148

1853-0567

1853-0516

1854-1037

1854-1445

5063-1420

1853-0728

1854-0597

1853-0728

1854-1303

1853-0293

0699-1318

0699-1423

0699-1386

0699-1318

0699-1391

0699-1423

0699-1318

0699-1423

0699-1318

0699-1391

0699-3034


0699-1503

0699-1503

7 RESISTOR .05 +-100% TKF

RESISTOR .05 +-100% TKF

8 0490-1664

0490-1664

0490-1664

9140-1716

9140-1102

9140-1425

9140-1102

9140-1103

9140-1102

9140-1101

9140-1102

0699-1503

9140-1099

2

8

2

2

2

1

Mfr.

Part

Code Number

28480 0699-1503

28480 0699-1503

RELAY 2C 5VDC-COIL 1A 110VDC



28480 0490-1664

28480 0490-1664

28480 0490-1664

INDUCTOR 910 nH +2% -2% 02113 1008CS-911XGBC

INDUCTOR 560 nH +-5% 2.8W-MMX3.4LG-MM 24226 03273

INDUCTOR SMT 270 nH 5% 24226 SM3-270J






RESISTOR .05 +-100% TKF 28480 0600-1503

INDUCTOR SMT 220 nH 5% 09021 KL32TER22J

4

1

1

3

1

3

4

2

2

TRANSISTOR PD=350 MW FT=300 MHZ










04713 MMBT3904

04713 MMBT3904

04713 MMBTH81

04713 MMBT3906

04713 MMBTH10

04713 MMBTH81

04713 MMBTH10

04713 MMBT3906

04713 MMBTH81

04713 MMBT3904

TRANSISTOR NPN SI SC-59

TRANSISTOR PNP 600 MHZ

TRANSISTOR PNP SI TO-261AA (SOT-223)

TRANSISTOR NPN 2N5943 SI TO-39 PD=1W

TRANSISTOR PNP SI TO-261AA (SOT-223)

TRANSISTOR NPN SI TO-261AA (SOT-223)

TRANSISTOR P RF TO39 30V 500 MA 1GHZ

28480 1854-1445

28480 5063-1420

28480 1853-0728

04713 2N5943

28480 1853-0728

28480 1854-1303

04713 2N5583

20 RESISTOR 1K +-1% .125 W TKF TC=0+-100

12 RESISTOR 215 +-1% .125 W TKF TC=0+-100

1

28480 0699-1318

28480 0699-1423

RESISTOR 5.62K +-1% .125 W TKF TC=0+-100 28480 0699-1386

RESISTOR 1K +-1% .125 W TKF TC=0+-100 28480 0699-1318

11 RESISTOR 10K +-1% .125 W TKF TC=0+-100 28480 0699-1391

RESISTOR 215 +-1% .125 W TKF TC=0+-100 28480 0699-1423

RESISTOR 1K +-1% .125 W TKF TC=0+-100

RESISTOR 215 +-1% .125 W TKF TC=0+-100

28480 0699-1318

28480 0699-1423

1



RESISTOR 1K +-1% .1W TKF TC=0+-100 2M627 MCR10-FZHM-F-1001

118



Designator

R301

R302

R303-R304

R305

R307-R308

R309

R310

R311

R313-R314

R316

R317

R318-R320

R321

R322

R323

R324

R401

R402

R404

R405-R406

R407-R408

R409

R410

R411

R412

R413

R414

R415

R418

R420

R421

R422

R423

R424

R501-R502

R521-R522

R601

R602-R609

R610

R611-R614

R615

R616-R622

R623

R624-R625

R626

R627-R628

0699-1391

0699-1374

0699-3431

0699-1318

0699-3211

0699-1400

0699-1432

0699-1344

0699-3698

0699-3041

0699-2889

0699-2832

0699-1381

0699-2489

0699-1415

0699-2937

0699-2431

0699-1318

0699-1391

0699-3594

0699-2103

0699-3431

0699-1423

0699-1431

0699-1318

0699-3763

0699-2488

0699-1433

0699-1345

0699-1826


0699-1403

0699-3211

0699-1318

0699-1391

0699-3431

0699-1937

0699-1384

0699-1344

0699-1434

1

2

6

1

6

4

2

RESISTOR 31.6K +-1% .125 W TKF TC=0+-100

RESISTOR 39.2K 1% 1206 .125 W 200V TC=100




RESISTOR 1.24K 1% 1206 .125 W TC=100 200V


RESISTOR 10 +-1% .125 W TKF TC=0+-100

RESISTOR 619 +-1% .125 W TKF TC=0+-100

Mfr.

Part

Code Number

28480 0699-1403

28480 0699-3211

28480 0699-1318

28480 0699-1391

28480 0699-3431

28480 0699-1937

28480 0699-1384

28480 0699-1344

28480 0699-1434

1

8

2





RESISTOR 39.2K 1% 1206 .125 W 200V TC=100 28480 0699-3211


RESISTOR 511 +-1% .125 W TKF TC=0+-100

RESISTOR 10 +-1% .125 W TKF TC=0+-100

RESISTOR 10 +-1% .1W TKF TC=0+-100

RESISTOR 3.48K +-1% .1W TKF TC=0+-100

28480 0699-1432

28480 0699-1344

2M627 MCR10-F-10R0

2M627 MCR10-F-3481

1

1

2

2

1

1

1

RESISTOR 4.7 +-5% .125 W TKF

RESISTOR 200 +-0.1% .125 W TF TC=0+-25

1 RESISTOR 3.48K +-1% .125W TKF TC=0+-100 2M627 MCR18-F-3481

3 RESISTOR 10K +-0.1% .125 W TF TC=0+-25

19 RESISTOR 100 +-1% .125 W TKF TC=0+-100

11502 W1206R031002BT

28480 0699-1415

RESISTOR 16K +-0.1% .125W TF TC=0+-25


2M627 MCR18J4R

11502 W1206R032000BT

09021 RN73E2BTE1602B

28480 0699-2431



RESISTOR 20.5K +-0.1% .125W TF TC=0+-25 11502 W1206R03-2052B

2 RESISTOR 49.9 +-1% .125 W TKF TC=0+-100 28480 0699-2103


RESISTOR 215 +-1% .125 W TKF TC=0+-100

RESISTOR 464 +-1% .125 W TKF TC=0+-100

28480 0699-1423

28480 0699-1431 1


10 RESISTOR 69 .1% 1206 .125 W 100V TC=25

28480 0699-1318

11502 W1206-R03-69R0-B

10 RESISTOR 100 +-0.1% .125 W TF TC=0+-25

3 RESISTOR 562 +-1% .125 W TKF TC=0+-100

11502 W1206R031000BT

28480 0699-1433

15 RESISTOR 11 +-1% .125 W TKF TC=0+-100

2 RESISTOR 45.3 +-1% .125 W TKF TC=0+-100

28480 0699-1345

28480 0699-1826

0699-1415

0699-1433

0699-1345

0699-1826

0699-1415

0699-2712

0699-1415

2

RESISTOR 100 +-1% .125 W TKF TC=0+-100

RESISTOR 562 +-1% .125 W TKF TC=0+-100

28480 0699-1415

28480 0699-1433

RESISTOR 11 +-1% .125 W TKF TC=0+-100 28480 0699-1345

RESISTOR 45.3 +-1% .125 W TKF TC=0+-100 28480 0699-1826

RESISTOR 100 +-1% .125 W TKF TC=0+-100

RESISTOR 255 +-1% .125 W TKF TC=0+-100

RESISTOR 100 +-1% .125 W TKF TC=0+-100

28480 0699-1415

28480 0699-2712

28480 0699-1415

7

119



R653

R654

R655

R656

R657

R658

R659

R660

R661

R662

R663

R664

R701-R702

R703-R704

R705-R706

R707-R708

R710

R711

R712

R713

Designator

R629

R630

R631

R632-R633

R634

R635

R636-R637

R638-R639

R640

R641

R642

R643

R644

R645

R646

R647-R648

R649

R650

R651

R652

R715-R716

R717

R718

R719-R720

R722

R723

0699-2103

0699-1432

0699-2631

0699-1415

0699-1366

0699-1360

0699-1432

0699-1318

0699-1398

0699-1330

0699-1421

0699-2883

0699-2843

0699-2489

0699-2631

0699-1422

2100-4199

0699-2883

0699-1394

0699-1366


0699-2712

0699-1415

0699-1432

0699-1384

0699-1415

0699-1432

0699-1384

0699-1344

0699-1432

0699-2631 4

RESISTOR 255 +-1% .125 W TKF TC=0+-100

RESISTOR 100 +-1% .125 W TKF TC=0+-10

Mfr.

Part

Code Number

28480 0699-2712

28480 0699-1415

RESISTOR 511 +-1% .125 W TKF TC=0+-100 28480 0699-1432


RESISTOR 100 +-1% .125 W TKF TC=0+-10

RESISTOR 511 +-1% .125 W TKF TC=0+-100

28480 0699-1415

28480 0699-1432


RESISTOR 10 +-1% .125 W TKF TC=0+-100 28480 0699-1344

RESISTOR 511 +-1% .125 W TKF TC=0+-100


28480 0699-1432

28480 0699-2631

0699-1432

0699-2196

0699-1415

0699-1432

0699-1352

0699-1332

0699-1392

0699-1330

0699-1392

0699-1318

1

1

2

2

3

RESISTOR 511 +-1% .125 W TKF TC=0+-100 28480 0699-1432

RESISTOR 78.7 1% 1206 .125 W 200 V TC=100 28480 0699-2196

RESISTOR 100 +-1% .125 W TKF TC=0+-100 28480 0699-1415

RESISTOR 511 +-1% .125 W TKF TC=0+-100 28480 0699-1432

RESISTOR 21.5 +-1% .125 W TKF TC=0+-100 28480 0699-1352


RESISTOR 11K +-1% .125W TKF TC=0+-100 28480 0699-1392




0699-1415

0699-2883

0699-1351

0699-1415

0699-1366

0699-1351

3

1

2

2

3

2

2

1

1

2

RESISTOR 49.9 +-1% .125 W TKF TC=0+-100 28480 0699-2103

RESISTOR 511 +-1% .125 W TKF TC=0+-100


RESISTOR 100 +-1% .125 W TKF TC=0+-100

RESISTOR 511 +-1% .125 W TKF TC=0+-100


28480 0699-1432

28480 0699-2631

28480 0699-1415

RESISTOR 82.5 +-1% .125 W TKF TC=0+-100 28480 0699-1366

RESISTOR 46.4 +-1% .125 W TKF TC=0+-100 28480 0699-1360

28480 0699-1432

28480 0699-1318



RESISTOR 178 +-1% .125 W TKF TC=0+-100 28480 0699-1421

RESISTOR 1.4K 1% 1206 .125 W 200V TC=100 28480 0699-2883

RESISTOR 100K +-0.1% .125 W TF TC=0+-25 11502 W1206R031003BT

RESISTOR 10K +-0.1% .125 W TF TC=0+-25


11502 W1206R031002BT

28480 0699-2631

RESISTOR 196 +-1% .125 W TKF TC=0+-100 28480 0699-1422

RESISTOR-TRMR 100 20% TKF TOP-ADJ 1-TRN 32997 3314G-1-101E

RESISTOR 1.4K 1% 1206 .125 W 200V TC=100 28480 0699-2883


RESISTOR 82.5 +-1% .125 W TKF TC=0+-100 28480 0699-1366

RESISTOR 100 +-1% .125 W TKF TC=0+-100 28480 0699-1415

RESISTOR 1.4K 1% 1206 .125 W 200V TC=100 28480 0699-2883

RESISTOR 19.6 +-1% .125 W TKF TC=0+-100 28480 0699-1351

RESISTOR 100 +-1% .125 W TKF TC=0+-100 28480 0699-1415

RESISTOR 82.5 +-1% .125 W TKF TC=0+-100 28480 0699-1366

RESISTOR 19.6 +-1% .125 W TKF TC=0+-100 28480 0699-1351

120



Designator

R724

R725

R726-R727

R728

R729-R730

R731-R732

R734-R735

R738

R739

R740

R741

R744-R747

R748-R749

R750-R751

R752-R755

R756

R758

R760-R764

R766-R772

R774-R775

R801

R802-R803

R804-R806

R807-R808

R809

R810-R811

R812-R813

R814

R815

R816-R817

R818

R819

R820

R821

R822-R823

R824-R825

R826-R827

R828-R829

R830-R832

R833

R834-R836

R837

R901

R902

R904-R905

R906

R907


0699-1437

0699-1415

0699-2064

0699-1415

0699-1827

0699-2890

0699-2890

0699-1378

0699-1387

0699-1426

4

2

2

4

1

3

1

RESISTOR 825 +-1% .125 W TKF TC=0+-100

RESISTOR 100 +-1% .125 W TKF TC=0+-100

RESISTOR 6.8 +-5% .125 W TKF TC=0+-500

Mfr.

Part

Code Number

28480 0699-1437

28480 0699-1415

2M627 MCR18J

RESISTOR 100 +-1% .125 W TKF TC=0+-100 28480 0699-1415

RESISTOR 130 1% 1206PKG TC=100 200V 1/8W 28480 0699-1827

RESISTOR 3.3 5% 1206 .125 W 200V TC=500 2M627 MCR18EZHJ3R3E

RESISTOR 3.3 5% 1206 .125 W 200V TC=500 2M627 MCR18EZHJ3R3E



RESISTOR 287 +-1% .125 W TKF TC=0+-100 28480 0699-1426

0699-1437

0699-2488

0699-1437

0699-1387

0699-2488

0699-3019

0699-3019

0699-3019

0699-3019

0699-3022

0699-3769

0699-1423

0699-3770

0699-3765

0699-3762

0699-3766

0699-3763

0699-3767

0699-3763

0699-1423

0699-2852

0699-3770

0699-2852

0699-3769

0699-3764

0699-3765

0699-3763

0699-3769

0699-3762

0699-3767

0699-3763

0699-1383

0699-1318

0699-1330

0699-1318

0699-1374

0699-1398

4

2

4

4

2

RESISTOR 825 +-1% .125 W TKF TC=0+-100

RESISTOR 100 +-0.1% .125 W TF TC=0+-25

28480 0699-1437

11502 W1206R031000BT

RESISTOR 825 +-1% .125 W TKF TC=0+-100 28480 0699-1437


RESISTOR 100 +-0.1% .125 W TF TC=0+-25 11502 W1206R031000BT

14 RESISTOR 26.1 1% SM0805 .1 W TC=250 100V 28480 0699-3019

RESISTOR 26.1 1% SM0805 .1 W TC=250 100V 28480 0699-3019

2

RESISTOR 26.1 1% SM0805 .1 W TC=250 100V 28480 0699-3019

RESISTOR 26.1 1% SM0805 .1 W TC=250 100V 28480 0699-3019

RESISTOR 46.4 +-1% .1 W TKF TC=0+-200 28480 0699-3022

4 RESISTOR 11.8 +-1% .125 W TKF TC=0+-100 28480 0699-3769

RESISTOR 215 +-1% .125 W TKF TC=0+-100 28480 0699-1423

RESISTOR 23.7 +-0.1% .125 W TF TC=0+-25 11502 W1206-R03-23R7-B

RESISTOR 115 .1% 1206 .125 W 100V TC=25 11502 W1206-R03-1150-B

RESISTOR 53 .1% 1206 .125 W 100V TC=25 11502 W1206-R03-53R0-B





RESISTOR 215 +-1% .125 W TKF TC=0+-100 28480 0699-1423

2

2

1

RESISTOR 442 +-1% .125 W TKF TC=0+-100

RESISTOR 23.7 +-0.1% .125 W TF TC=0+-25

28480 0699-2852

11502 W1206-R03-23R7-B

RESISTOR 442 +-1% .125 W TKF TC=0+-100 28480 0699-2852

RESISTOR 11.8 +-1% .125 W TKF TC=0+-100 28480 0699-3769

RESISTOR 442 0.1% 1206 .125W 100V TC=25 11502 W1206-R03-4420-B

RESISTOR 115 .1% 1206 .125W 100V TC=25 11502 W1206-R03-1150-B


RESISTOR 11.8 +-1% .125 W TKF TC=0+-100 28480 0699-3769










7

121



Designator

R908

R909

R910

R1001

R1002

R1003

R1004

R1008-R1009

R1010

R1011


0699-1318

0699-3408

0699-1391

0699-1380

0699-1424

0699-1380

0699-1424

0699-1391

0699-1421

0699-1433

1

3

2


RESISTOR 1K +-5% 1 W TKF TC=0+-200



RESISTOR 237 +-1% .125 W TKF TC=0+-100


RESISTOR 237 +-1% .125 W TKF TC=0+-100


RESISTOR 178 +-1% .125 W TKF TC=0+-100

RESISTOR 562 +-1% .125W TKF TC=0+-100

Mfr.

Part

Code Number

28480 0699-1318

2M627 MCR1001KJ

28480 0699-1391

28480 0699-1380

28480 0699-1424

28480 0699-1380

28480 0699-1424

28480 0699-1391

28480 0699-1421

28480 0699-1433

R1012

R1013

R1014

R1052

RP301-RP302

RP401

RP403-RP404

RP601

0699-1391

0699-1380

0699-1384

0699-1327

1810-1360

1810-1065

1810-1331

1810-1159

SHD902

SPR1-SPR2

33120-00614

0380-0643

SPR10-SPR20 2190-0577

U101

U102

U103

U104

U105

U106

U107

U108

U109

U201

U202

U203-U204

U205

U206

U210

U211

U212

U213

U214

U215

U216

U217

U218

1990-1552

1821-1479

1820-8907

33120-88861

1818-4777

1818-5699

1820-5808

1820-5941

1820-5944

1820-6306

1820-5808

1820-6306

1818-5093

1821-0976

1820-7244

1820-5940

1820-5944

1990-1552

1820-8830

1820-5937

1820-4998

1820-5943

1821-0559

1

2

1

2

1

1

2

2

3

1

2

1

1

1

1

1

2

3

3

1

1

2

1

2

1

1

2

1




RESISTOR 1M +-1% .125 W TKF TC=0+-100

RESISTOR-NETWORK 16PINS,THICK FILM,SMD 28480 1810-1360

NET-RES 15 1.0K OHM 16-PIN

NET-RES 8 220.0 OHM 16-PIN

RESISTOR-NETWORK

RFI SHIELD

STANDOFF-HEX .255-IN-LG 6-32-THD

WASHER- NO. 10 .194-IN-ID .294-IN-OD

IC TRANSCEIVER CMOS/HCT BUS OCTL

IC 256K-BIT SRAM 25-NS CMOS

IC MODULATOR ANLG 68 PIN PLCC

IC SCHMITT-TRIG CMOS/74AC INV HEX

IC GATE CMOS/74ACT AND QUAD 2-INP

74ACT32-GATE, QUAD 2-INPUT OR

28480 0699-1327

11236 767161102G

11236 767163221G

28480 1810-1159

28480 33120-00614

28480 0380-0643

20859 03118

OPTO-ISOLATOR LED-IC GATE IF=10 MA-MAX 28480 HCPL-2211-300

IC-BIT SLICE MPU/MCU

IC GATE-ARY CMOS

34649 N80C196KB

27014 SCX6206AK0

PROG PAL

IC 256K-BIT SRAM 70-NS CMOS

28480 33120-88861

28480 1818-4777

IC, CMOS, AMB, 32 PIN, 120 NANOSECONDS 34335 AM29F010-120JC

IC FF CMOS/74HC D-TYPE POS-EDGE 04713 MC74HC273DW

IC DCDR CMOS/74ACT BIN 8-TO-1-LINE

74ACT32-GATE, QUAD 2-INPUT OR

28480 1820-5941

28480 1820-5944

IC TRANSCEIVER CMOS/HCT BUS OCTL

IC FF CMOS/74HC D-TYPE POS-EDGE

27014 MM74HCT245WM

04713 MC74HC273DW

27014 MM74HCT245WM

04713 MCM6206DJ25

01295 F107563FN

27014 74AC14SC

28480 1820-5940

07263 02237

OPTO-ISOLATOR LED-IC GATE IF=10MA-MAX 28480 HCPL-2211-300

IC MUXR/DATA-SEL CMOS/ACT 8-TO-1-LINE 04713 MC74ACT251D

IC FF CMOS/74AC D-TYPE POS-EDGE-TRIG 07263 02237

IC GATE TTL/F OR QUAD 2-INP 27014 74F32SC

IC MUXR/DATA-SEL CMOS/74ACT 2-TO-1-LINE 07263 02237

IC FF BICMOS/ABT D-TYPE POS-EDGE-TRIG 01295 SN74ABT16374ADL

122



Designator

U301-U302

U303

U304

U305

U306-U307

U314

U315

U401

U402-U403

U404-U405

U407

U409

U410

U411

U412

U413

U601-U602

U603

U604

U620

U621

U702

U901

U902

U903

U904

U906

U907

U908

U1001

U1002

U1003

U1004

U1006

U1007

U1051

U1052

XJ601

XJ801

XQ713

XQ718

Y101

Y901


1821-0964

1826-2793

1821-0434

1820-5790

1826-1622

1826-1622

1820-5943

1820-6524

1820-8461

1818-4983

1826-3517

1826-1619

1826-1622

1820-4377

1820-5732

1813-0861

1821-0434

1826-2797

1820-8830

1826-1950

1821-0622

1826-1991

1990-1552

1820-7244

34401-88842

1821-1721

1820-7662

1820-6176

1820-6175

1826-0527

1826-0393

1826-0527

1826-1597

1826-2264

1826-2801

1826-2794

1826-2264

1

2

2

1

1

1

1

1

1

1

1

1

1

1

1

3

1

2

1

4

1

2

1

1

2

1

1

Mfr.

Code

Part

Number

IC DRVR 8X S 20SOL 45V 250MA

IC DA VOUT SER 16SOL 16BIT AD1851R

01295 TPIC6595DW

24355 AD1851R

IC ANLG-MUXR/DEMUXR CMOS/HC 8-CHAN 18324 74HC4051D

IC SHF-RGTR CMOS/74HC SYNCHRO SERIAL-IN 18324 74HC4094D

IC OP AMP LOW-BIAS-H-IMPD QUAD 14 PIN


04713 TL074CD

04713 TL074CD

IC MUXR/DATA-SEL CMOS/74ACT 2-TO-1-LINE 07263 02237

IC XLTR ECL/10KH TTL-TO-ECL QUAD 04713 MC10H124FN

IC FF BICMOS/ABT D-TYPE POS-EDGE-TRIG 01295 SN74ABT574ADW

IC 256K-BIT SRAM 15-NS CMOS 28480 1818-4983

D/A 12-BIT 28-PLCC MISC

D/A 8-BIT 20-PLCC CMOS


IC GATE TTL/F NAND QUAD 2-INP

28480 1826-3517

24355 AD7528JP

04713 TL074CD

27014 74F00SC

IC LCH CMOS/74HC D-TYPE OCTL 04713 MC74HC573ADW

CLOCK-OSCILLATOR-XTAL 40.000-MHZ 0.01% 28480 1813-0861

IC ANLG-MUXR/DEMUXR CMOS/HC 8-CHAN 18324 74HC4051D

IC MULTIPLIER HS 14 PIN DIP-P 24355 AD734AN

IC MUXR/DATA-SEL CMOS/ACT 8-TO-1-LINE 04713 MC74ACT251D

IC COMPARATOR HS SGL 8 PIN PLSTC-SOIC 28480 1826-1950

IC DRVR BICMOS/ABT LINE OCTL

IC OP AMP HS SINGLE 8 PIN PLSTC-SOIC

18324 74ABT540D

24355 AD711JR

OPTO-ISOLATOR LED-IC GATE IF=10MA-MAX 28480 HCPL-2211-300

IC SCHMITT-TRIG CMOS/74AC INV HEX

IC, ROM PROGRAMMED

27014 74AC14SC

28480 34401-88842

IC GPIB CONTROLLER 01295 MP9914FNL

IC-INTERFACE DRVR/RCVR BIPOLAR DUAL 28480 1820-7662

IC-INTERFACE XCVR BIPOLAR BUS OCTL

IC-INTERFACE XCVR BIPOLAR BUS OCTL

01295 SN75ALS160DW

01295 SN75ALS162DW

IC V RGLTR-ADJ-NEG 1.2/37V 3-TO-220 PKG 27014 LM337T

IC V RGLTR-ADJ-POS 1.2/37V 3-TO-220 PKG 27014 LM317

IC V RGLTR-ADJ-NEG 1.2/37V 3-TO-220 PKG 27014 LM337T

IC V RGLTR-FXD-POS 4.85/5.15V TO-220 PKG 27014 LM2940CT

IC PWR MGT-UND-V-SEN 8 PINS P-SOIC PKG 04713 MC34064D-5

IC V RGLTR-OV-V-SEN 8-P-SOIC PKG 04713 MC3423D

IC V RGLTR-FXD-POS 4.85/5.15V 3-TO-220 27014 LM2490CT-5.0-LB01

IC PWR MGT-UND-V-SEN 8 PINS P-SOIC PKG 04713 MC34064D-5

2 3050-0447

3050-0447

1200-0181

1200-0181

0410-4009

0410-4009

2

2

WASHER-FL NM NO. 8 .192-IN-ID .37-IN-OD

WASHER-FL NM NO. 8 .192-IN-ID .37-IN-OD

INSULATOR-XSTR NYLON

INSULATOR-XSTR NYLON

CERO-RES 12 MHZ +1-0.8%

CERO-RES 12 MHZ +1-0.8%

28480 3050-0447

28480 3050-0447

13103 7717-5-N

13103 7717-5-N

28480 0410-4009

28480 0410-4009

7

123


33120-66502 – Display and Keyboard PC Assembly

Designator

C1101

C1102-1103

C1104

C1105

C1201-1203

C1301-1302

C1303-1304

C1305-1310

CR1101

CR1102

CR1105

J1301

L1301

M1301

S1119

U1101

U1102

U1103

U1201

U1202

U1203

U1204

U1301

U1302

Y1101

R1101

R1102

R1103-1106

R1107

R1108

R1109

R1301-1304

R1305-1306

R1307-1308

R1309

33120-66502 – Display and Keyboard PC Assembly


0160-5945

0180-3751

0160-6497

0160-5947

0160-6497

0160-5947

0160-5945

0160-6497

1906-0291

1906-0395

1902-1542

34401-61602

9170-1431

33120-00611

3

1

1

1

1

1

1


10 CAP-FXD 1 uF 35 V TA

3 CAP-FXD 0.1 uF 25 V


CAP-FXD 0.1 uF 25 V



CAP-FXD 0.1 uF 25 V A

DIODE- 70 V 100 MA

DIO SIG 2X SOT143L 75V 215MA 2PF


DISPLAY CABLE ASSY, 8.8L

SHIELDING CORE, BEADS

SHIELD-ESD

0699-1399

0699-1391

0699-1344

0699-1391

0699-1378

0699-1435

0699-1423

0699-1391

0699-1330

0699-1399

0960-0892

33120-88813

1826-1402

1826-2264

1820-5562

1820-4966

1820-5330

33120-89301

1826-1528

1820-6756

0410-4009

1

1

4

2

1

2

4

4

1

1

1

1

1

1

1

1

1

1

Mfr.

Code

Part

Number

04222 08055C103KAT A

S0545 NRS105M35R8

04222 12065C104KAT A

04222 08055C102KAT A

04222 12065C104KAT A

04222 08055C102KAT A

04222 08055C103KAT A

04222 12065C104KAT A

04713 MBAV99

25403 BAS28

04713 BZX84C6V2

28480 34401-61602

28480 9170-1431

28480 33120-00611

RESISTOR 23.7K +-1% .125W TKF TC=0+-100 2M627 MCR18FX

RESISTOR 10K +-1% .125W TKF TC=0+-100 2M627 MCR18FX

RESISTOR 10 +-1% .125 W TKF TC=0+-100

RESISTOR 10K +-1% .125W TKF TC=0+-100

28480 0699-1344

2M627 MCR18FX


RESISTOR 681 +-1% .125W TKF TC=0+-100 2M627 MCR18FX

RESISTOR 215 +-1% .125W TKF TC=0+-100 2M627 MCR18FX




ROTARY ENCODER 28480 0960-0892

87C51 PROG 28480 33120-88813

IC-V RGLTR-FXD-POS 4.8/5.2V 8-P-SOIC PKG 04713 MC78L05ACD

IC-PWR MGT-UND-V-SEN 8 PINS P-SOIC PKG 04713 MC34064D-5

74HC02-GATE, QUAD 2-INPUT NOR INPUT 01295 SN74HC02D

IC-FF CMOS/74HC D-TYPE POS-EDGE-TRIG 01295 SN74HC74D

IC-INTERFACE DRIVER BIPOLAR DISPLAY

VACUUM FLUORESCENT DISPLAY

01295 SN75518FN

28480 33120-89301

IC-COMPARATOR LP QUAD 14 PIN PLSTC-SOIC 27014 LM339M

IC-SHIFT-REGISTER CMOS/74HC BIDIR 04713 MC74HC299D

CERO-RES 12 MHZ +1-0.8% 28480 0410-4009

124


33120A Mainframe

33120A Mainframe

Designator Number Qty Part Description

Mfr.

Part

Code Number

A1

A2

B1

CBL1-CBL2

33120-66521

33120-66502

3160-0847

33120-61601

1

1

1

2

MAIN PC ASSEMBLY

DISPLAY AND KEYBOARD PC ASSEMBLY

FAN-TBAX 12V 5.3-CFM NOM

CABLE BNC

28480 33120-66521

28480 33120-66502

11855 DFB0412L-SG

28480 33120-61601

CBL4 RS232-61601 1 RS-232 CABLE 28480 RS232-61601

CD1 33250-1360

3 1 AGILENT INTUILINK ARB SOFTWARE CD 28480 33250-13603

CVR1

F1

FRM1

33120-84131

2110-0458

33120-80111

1

1

1

COVER

FUSE-500 MAT

CHASSIS

28480 33120-84131

75915 239.500

28480 33120-80111

HDW1

HDW2

HDW3

HDW4

KIT1

KYC1

KYC2

KYC3

MP2

PNL1

PS1

SCR1-SCR7

SCR8-SCR9

T1

WD1

0380-1820

0535-0154

3050-1547

34401-88304

34401-86010

33120-87411

34401-43711

34401-45011

33120-81911

33120-40211

33120-86201

0515-0433

0624-0862

9100-5090

33120-49321

1

1

1

1

1

1

1

1

1

1

1

7

2

1

1

SPACER, .438 IN LG, .280 IN OD

NUT-HEX SGL-CHAM M9.0 X 0.75 2MM-THK

WASHER-FL MTLC 9.0 9.2-MM-ID 14-MM-OD AL

REAR PANEL

28480 0380-1820

11239 3-9-03

11239 4-9-01

28480 34401-88304

BUMPERS (FRNT/REAR) & POWER MOD CVR 28480 34401-86010

FRONT-PANEL KNOB

PUSH-ROD, POWER-ON

CARRYING HANDLE

FRONT-PANEL KEYPAD

FRONT-PANEL/BEZEL ASSEMBLY

POWER-MODULE/FUSE & FUSE DRWR

SCREW-M4 X 8MM LG PAN-HD

FRONT DISPLAY WINDOW

28480 33120-87411

28480 34401-43711

28480 33120-45011

28480 33120-81911

28480 33120-40211

28480 33120-86201

28480 0515-0433

SCREW-TPG .750-IN-LG PAN-HD-PHL STL,1022 93907 225-44395-890

TRANSFORMER-PWR 100/120/220/240V 08807

28480

8470B45

33120-49321

125

7


Manufacturer’s List

Manufacturer’s List

Mfr Code Manufacturer’s Name

32997

34335

34649

51406

71744

75915

76381

93907

20859

24355

24444

24226

25403

27014

27264

28480

2L446

2M627

S0545

S4217

08807

09021

11236

11239

11502

11855

13103

18324

00779

01295

02113

04222

04713

05971

07263

07933

Amp Inc

Texas Instruments Inc

Coilcraft Inc

AVX Corp

Motorola Inc

LYN-TRON Inc

Fairchild Semiconductor Corp

Raytheon Co Semiconductor Div Hq

MidwestCo Enterprises Inc

KOA Speer Electronics Inc

CTS Corp

Nobel Mercantile Co

IRC Inc

Delta Electronic Industries Co

Thermalloy Inc

Signetics Corp

Mellowes Co

Analog Devices Inc

General Semiconductor Ind Inc

Gowanda Electronics Corp

NV Philips Elcoma

National Semiconductor Corp

Molex Inc

Agilent Technologies, Inc.

Bourns Networks Inc

Advanced Micro Devices Inc

Intel Corp

Murata Corporation Of America

General Instrument Corp

Littelfuse Inc

3M Corp

Camcar Screw and Mfg Co

ADAC Screw Machine Products

Rohm Corp

NEC Electronics Inc

Nippon Chemi-Con Corp

Manufacturer’s Address

Harrisburg, PA, U.S.A.

Dallas, TX, U.S.A.

Cary, IL, U.S.A.

Great Neck, NY, U.S.A.

Roselle, IL, U.S.A.

Burbank, CA, U.S.A.

Cupertino, CA, U.S.A.

Mountain View, CA, U.S.A.

Grayslake, IL, U.S.A.

Bradford, PA, U.S.A.

Elkhart, IN, U.S.A.

Alburquerque, NM, U.S.A.

Corpus Christi, TX, U.S.A.

Taipei, Taiwan

Dallas, TX, U.S.A.

Sunnyvale, CA, U.S.A.

Milwaukee, WI, U.S.A.

Norwood, MA, U.S.A.

Tempe, AZ, U.S.A.

Gowanda, NY, U.S.A.

Eindhoven, Netherlands

Santa Clara, CA, U.S.A.

Lisle, IL, U.S.A.

Palo Alto, CA, U.S.A.

Riverside, CA, U.S.A.

Sunnyvale, CA, U.S.A.

Santa Clara, CA, U.S.A.

Marietta, GA, U.S.A.

Clifton, NJ, U.S.A.

Des Plaines, IL, U.S.A.

St. Paul, MN, U.S.A

Rockford, IL, U.S.A.

Redwood City, CA, U.S.A.

Kyoto 615, JAPAN

Mountain View, CA, U.S.A.

Ohme-shi Tokyo, JAPAN

Zip Code

60532

94303

92507

94086

95054

30067

07012

60016

75234

94086

53212

02062

85281

14070

02876

95052

55144

61101

94063

17111

75265

60013

11021

60195

91505

95014

94040

60030

16701

46514

87109

78411

94043

126

8

Schematics

8

Schematics

33120A Block Diagram . . . . . . . . . . . . . . . . . 129

Mechanical Disasembly . . . . . . . . . . . . . . . . . 130

Floating Logic Schematic . . . . . . . . . . . . . . . . 131

Digital Waveform Data Synthesis Schematic . . . . . 132

System DAC Schematic . . . . . . . . . . . . . . . . . 133

Waveform DAC Schematic . . . . . . . . . . . . . . . 134

Filters Schematic . . . . . . . . . . . . . . . . . . . . 135

Sync, Square Wave, and Attenuator Schematic . . . . 136

Output Amplifier Schematic . . . . . . . . . . . . . . 137

Output Attenuator Schematic . . . . . . . . . . . . . 138

Earth Reference Logic Schematic . . . . . . . . . . . . 139

Power Supplies Schematic . . . . . . . . . . . . . . . 140

Display and Keyboard Schematic . . . . . . . . . . . . 141

33120-66521 Component Locator Diagram . . . . . . 142

33120-66502 Component Locator Diagram . . . . . . 143

You may notice parts labeled as “No Load” on several schematics.

These are parts that were included in the original design but were removed later to enhance performance or reduce cost.

128

Ô Binder Edge (RH Page)

Foldout Cut Size = 9 x 19 inches

Fold Here Fold Here



Fold Here Fold Here

Block Diagram

129

Pull To

Remove

Press Down To

Unlatch Cable

Pull Off Handle

Pull Up To

Disconnect

Fold Here

Pull Off Bumpers

Loosen

Captive

Screws

Remove Bottom Screw

Fold Here

Binder Edge (LH Page)

Õ


Slide Off Outer Case

Remove Screw

Fold Here

Pry Outward

From This Side

Front Panel

Will Pull Off

Fold Here

Mechanical Disassembly

130


Õ




Fold Here Fold Here



Fold Here Fold Here

33120-66521 (sheet 1 of 10)

Floating Logic Schematic

131

Fold Here Fold Here


Õ


Fold Here Fold Here

33120-66521 (sheet 2 of 10)

Digital Waveform Data Synthesis Schematic

132


Õ




Fold Here Fold Here



Fold Here Fold Here

33120-66521 (sheet 3 of 10)

System DAC Schematic

133

Fold Here Fold Here


Õ


Fold Here Fold Here

33120-66521 (sheet 4 of 10)

Waveform DAC Schematic

134


Õ




Fold Here Fold Here



Fold Here Fold Here

33120-66521 (sheet 5 of 10)

Filters Schematic

135

Fold Here Fold Here


Õ


Fold Here Fold Here

33120-66521 (sheet 6 of 10)

Sync, Square Wave, and Attenuator Schematic

136


Õ




Fold Here Fold Here



Fold Here Fold Here

33120-66521 (sheet 7 of 10)

Output Amplifier Schematic

137

Fold Here Fold Here


Õ


Fold Here Fold Here

33120-66521 (sheet 8 of 10)

Output Attenuator Schematic

138


Õ




Fold Here Fold Here



Fold Here Fold Here

33120-66521 (sheet 9 of 10)

Earth Reference Logic Schematic

139

Fold Here Fold Here


Õ


Fold Here Fold Here

33120-66521 (sheet 10 of 10)

Power Supplies Schematic

140


Õ




Fold Here Fold Here



Fold Here Fold Here

33120-66502 (sheet 1 of 1)

Display and Keyboard Schematic

141

Fold Here Fold Here


Õ


Fold Here

TOP SIDE 33120-66521 REV A

Fold Here

33120-66521 Component Locator Diagram

142


Õ


TOP SIDE 33120-66502 REV C

33120-66502 Component Locator Diagram

143

 Copyright Agilent Technologies, Inc.

1994-2002

No part of this manual may be reproduced in any form or by any means

(including electronic storage and retrieval or translation into a foreign language) without prior agreement and written consent from Agilent

Technologies as governed by the

United States and international copyright laws.

Manual Part Number

33120-90017, March 2002

(order as 33120-90104 manual set)

Edition


Edition 5, August 1997

Edition 4, February 1996

Edition 3, May 1994


Edition 1, January 1994

Printed in Malaysia

Agilent Technologies, Inc.

815 14th Street S.W.

Loveland, Colorado 80537 U.S.A.

Warranty

The material contained in this document is provided “as is,” and is subject to being changed, without notice, in future editions.

Further, to the maximum extent permitted by applicable law,

Agilent disclaims all warranties, either express or implied with regard to this manual and any information contained herein, including but not limited to the implied warranties of merchantability and fitness for a particular purpose. Agilent shall not be liable for errors or for incidental or consequential damages in connection with the furnishing, use, or performance of this document or any information contained herein. Should Agilent and the user have a separate written agreement with warranty terms covering the material in this document that conflict with these terms, the warranty terms in the separate agreement will control.

Technologies Licenses

The hardware and/or software described in this document are furnished under a license and may be used or copied only in accordance with the terms of such license.

Safety Notices

Do not install substitute parts or perform any unauthorized modification to the product. Return the product to an Agilent Technologies

Sales and Service Office for service and repair to ensure that safety features are maintained.

W A R N I N G

A WARNING notice denotes a hazard.

It calls attention to an operating procedure, practice, or the like that, if not correctly performed or adhered to, could result in personal injury or death.

Do not proceed beyond a WARNING notice until the indicated conditions are fully understood and met.

C A U T I O N

A CAUTION notice denotes a hazard.

It calls attention to an operating procedure, practice, or the like that, if not correctly performed or adhered to, could result in damage to the product or loss of important data. Do not proceed beyond a CAUTION notice until the indicated conditions are fully understood and met.

Assistance

Product maintenance agreements and other customer assistance agreements are available for Agilent Technologies products. For assistance, contact your nearest Agilent Technologies Sales and Service Office. Further information is available on the Agilent web site at

www.agilent.com/find/assist.

Earth ground symbol.

Chassis ground symbol.

Trademark Information

Microsoft

®

and Windows

®

are U.S. registered trademarks of Microsoft

Corporation. All other brand and product names are trademarks or registered trademarks of their respective companies.

Certification

Agilent Technologies certifies that this product met its published specifications at the time of shipment from the factory. Agilent Technologies further certifies that its calibration measurements are traceable to the

United States National Institute of

Standards and Technology, to the extent allowed by that organization’s calibration facility, and to the calibration facilities of other International

Standards Organization members.

Restricted Rights Legend

If software is for use in the performance of a U.S. Government prime contract or subcontract, Software is delivered and licensed as “Commercial computer software” as defined in

DFAR 252.227-7014 (June 1995), or as a “commercial item” as defined in FAR 2.101(a) or as “Restricted computer software” as defined in

FAR 52.227-19 (June 1987) or any equivalent agency regulation or contract clause. Use, duplication or disclosure of Software is subject to

Agilent Technologies’ standard commercial license terms, and non-

DOD Departments and Agencies of the U.S. Government will receive no greater than Restricted Rights as defined in FAR 52.227-19(c)(1-2)

(June 1987). U.S. Government users will receive no greater than Limited

Rights as defined in FAR 52.227-14

(June 1987) or DFAR 252.227-7015

(b)(2) (November 1995), as applicable in any technical data.

W A R N I N G

Only qualified, service-trained personnel who are aware of the hazards involved should remove the cover from the instrument.

W A R N I N G

For continued protection against fire, replace the line fuse only with a fuse of the specified type and rating.

Inside Front Cover (English Service Guide)